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Leffen "MewTwoMan"
Leffen at EVO 2018.
Character info
Melee main Fox
Other Melee character Sheik, Mewtwo
Retired Melee character Falco, Yoshi, Marth
Brawl main Diddy Kong
Smash 4 mains Diddy Kong, Pikachu
Ultimate main Pokémon Trainer
Other Ultimate character Terry
Retired Ultimate characters Pichu, Roy
Project M mains Fox, Zero Suit Samus
Other Project M character Captain Falcon
Team info
Sponsor(s) Team SoloMid
Former sponsor(s) Red Bull
Rankings and results info
Most recent ranking Super Smash Bros. Melee SSBMRank 2023: HM
Best historical ranking Super Smash Bros. Melee MPGR 2019: 2nd
Best tournament result Super Smash Bros. Melee 1st / 1353 at EVO 2018
Super Smash Bros. 4 9th / 203 at Paragon Orlando 2015
Super Smash Bros. Ultimate 17th / 2105 at GENESIS 6
PM Icon.png 9th / 382 at Apex 2014
Winnings Super Smash Bros. Melee ~$137,640.87
Super Smash Bros. Ultimate ~$4,215.17
Personal and other info
Real name William Hjelte
Birth date (age 29)
Location Stockholm, Stockholms Län Sweden

Leffen is a professional smasher from Stockholm, Sweden. He is currently considered to be one of the best Melee players in the world and the best player in Europe. He started off as a Falco main, but later switched to Fox, and is now known as one of the best and most technical Fox players in the world and one of the best Sheik players in the world, using Sheik as a counterpick to Marth. He is the first of only two players in competitive Melee history to have taken a set off of each of the Five Gods (the other being Plup), and has often been called a god himself since his ascent in 2014. Leffen is currently ranked 1st on the Swedish Melee Power Rankings. He is also an honorable mention on the SSBMRank 2023 and EURank 2023.

Although Leffen didn't play Brawl competitively and only went to a few Smash 4 tournaments, he was active in Ultimate for the game's first year, maining Pokémon Trainer and briefly touching Pichu and Roy. During this period, he was considered one of the best Pokémon Trainer players in the world along with Tweek, moxi, and Ned. Leffen has defeated players such as Tweek, Salem, WaDi, Puppeh, Mr.R, Maister, ZD, and 8BitMan. He was listed as an Honorable Mention on both the Swedish Ultimate Power Rankings and the European Smash Rankings, and was formerly ranked in the Area 51 position on the Fall 2019 PGRU.

Tournament history[edit]

2010-2013: Early career[edit]

Leffen's introduction to Smash was through Brawl, which he played online in 2009.

In 2010, he started attending tournaments for Melee. He mained Falco and also trained a Yoshi secondary, which he used to great success at Stockholm locals and at Danish events.

Throughout the course of 2012, Leffen established himself as Europe's second-strongest player behind Armada, with key results at Smashers' Reunion: Melee Grande and at hf.lan 4. He sparred often with Armada, making headway but never taking a set. He came closest at Beauty 6 in January 2013, where he was leading winners' finals 3-2 (in a best-of-7) and brought the sixth game to last stock before Armada clutched out the victory, going on to win the set 4-3.

Leffen also began traveling to North American supermajors during this time, and was noted as one of Armada's frequent travel companions from Europe. He displayed many respectable performances vs. the world's best players, but ultimately failed to make any top eight placings in North America from 2011 to 2013. GENESIS 2 was his first tournament in the United States, where he placed 17th, defeating SFAT in pools, but losing to SFAT and S2J in bracket. At Apex 2012, his first serious event as a Fox main, Leffen placed 33rd, and lost a last-hit set to Mew2King in winners. At Apex 2013, Leffen defeated MacD and Cactuar in winners to meet Hungrybox. He made a splash by bringing Hungrybox to last hit but lost this set as well; this close loss would go on to inspire a Salty Suite rematch the following year. In losers, Leffen lost another last-hit set to JAVI, placing 17th.

In February 2013, a group of prominent TOs and community members (led by Armada) announced that Leffen was banned was from many European tournaments due to his conduct. As a result, he only attended three tournaments for the rest of year. His most significant result was at EVO 2013, where he defeated PewPewU before losing to Hungrybox and Shroomed in losers to place 9th, his strongest placing at an American tournament to date. He and Ice scored an upset victory in doubles against eventual victors Mew2King and Hungrybox; the European team went on to place 5th.

Leffen also attended a New York City local in September called CFST: Warzone 2, where he suffered unusual losses to MattDotZeb and G$, perhaps due to lack of practice. He finished out the year at hf.lan 6 where he placed second, defeating Baxon and Salepate convincingly before losing two close sets to Ice. Given his powerful play despite his scarce results, Leffen was ranked 14th on the 2013 SSBMRank.

Leffen's ban ended in early 2014, allowing him to compete in Europe again.

2014: Emergence as a top six player[edit]

2014 marked Leffen's emergence into the highest level of competitive Melee, establishing himself as one of the six best players in the world. He had a breakout performance at Apex 2014, where he earned his first set victory over one of the Five Gods, defeating Hungrybox 2-1 in winners' quarters (despite losing 1-3 in a Salty Suite the previous day). He then lost to Mew2King 1-3 in winners' semis; in losers' he beat Colbol 2-0 and then had a close and intense set with Mang0 in losers' semis, but ultimately lost 2-3, getting 4-stocked to close out the set. This 4th place showing immediately confirmed Leffen as a player to watch for the rest of the year and presaged his ascent as a top player.

Back in Europe, Leffen won his first European national and defeated his second God at B.E.A.S.T 4, winning two sets against Armada from losers, 3-0 and 3-1 respectively. Leffen then won Republic of Fighters 3, qualifying for the MLG Anaheim 2014 championship bracket. After losing to Armada 0-3 in winners' finals, he returned to grand finals and defeated him 6-0 across two sets.

Leffen competed in two American supermajors in the summer of 2014: MLG Anaheim 2014 and EVO 2014. In his pool at MLG Anaheim 2014, Leffen earned his third God victory by defeating PPMD 3-2. He also defeated Axe, Colbol 3-1, s0ft, and Remen, but lost to Mew2King and Hax. Seeded in losers' for the championship bracket, he defeated both Westballz and Hax, before losing to PPMD 1-3 in losers' quarters, placing 5th overall. At EVO 2014, Leffen lost to Mew2King 0-2 in winners' quarters. In the losers' bracket, he was eliminated by Silent Wolf 1-2, finishing off at an underwhelming 9th place overall.

Leffen's last big event of the year was The Big House 4, where he defeated Hungrybox 3-2 in winners' quarters and Armada 3-2 in winners' semis; this marked the first time Leffen made winners' finals at an American major. However, he lost 0-3 to Mew2King in winners' finals and 1-3 to Mang0 in losers' finals, with a 4-stock by Mang0 to close out the set, finishing 3rd, his best major placement so far.

Leffen ended the year ranked 6th on the SSBMRank 2014, only behind the Five Gods. Many players now viewed Leffen in the same tier as the Gods (as part of a new "big six,"), as he was the first non-God who had proven the ability to consistently beat several of them in tournament, and rarely losing sets to non-God players. He was popularly nicknamed "The Godslayer" as a result.

2015: Rise to the top[edit]

2015 marked Leffen's final push to the very top of competitive Melee, defeating all five Gods and competing for the title of best player in the world. He started the year at B.E.A.S.T 5, where he defeated Armada 3-1 in winners' semis, earned his first victory over Mang0 3-2 in winners' finals, and faced Armada again in grand finals. Despite a closely fought set from both players (with Armada notably 4-stocking Leffen in game 4), Leffen managed to win grand finals 3-2; Leffen had now defeated four of the Five Gods, and became the first non-God to win a major with at least two of the Gods present since the start of the Five Gods era. Mew2King was now the only God he had yet to beat.

Apex 2015 was a highly anticipated tournament for Leffen. He first fought a Salty Suite exhibition match vs. Chillin; Leffen easily won 5-0, and as punishment for losing, Chillin was unable to use the default Fox color in tournament ever again. Following the match, Mang0 went on stage and challenged Leffen to place $1000 on their match if they played each other in bracket, which Leffen accepted.

In the main bracket, Leffen easily made it to winners' quarterfinals to face Mew2King, his last undefeated God. In a momentous 2-1 victory, including a dominant 3-stock in game 3, Leffen defeated Mew2King, becoming the first player to take a tournament set from all of the Five Gods of Melee. He then went on to defeat Mang0 3-1, winning the set and earning an additional $1000. Looking poised to take the tournament, Leffen ultimately fell to PPMD 2-3 in winners' finals and Armada 1-3 in losers' finals, earning 3rd place. Having defeated all Five Gods in tournament, and having outplaced three of them, Leffen cemented his title as the "Godslayer" of Melee. (While Leffen was considered at the same level as the Gods, the Melee community has reserved "God" as a historical title to mark an era of the game's competitive history.) Soon after, Leffen was signed by Team SoloMid, one of the largest and most famous eSports organizations.[1]

In the spring of 2015, Leffen placed 3rd at I'm Not Yelling!, 5th at Sandstorm, and 9th at Press Start (where he was upset 2-3 by SFAT in winners' quarters and lost 0-3 to Mang0 in losers' bracket); this was now considered a relative underperformance for Leffen.

Leffen's dominance continued to grow throughout the summer of 2015, and following a series of first place finishes, he developed a claim as the best player in the world. At CEO 2015, Leffen won his first American major, defeating Armada twice in winners' finals 3-0 and grand finals 3-1. He then placed first at FC Smash 15XR: Return, where he beat Hungrybox 3-1 in winners' semis and Armada 3-1 in winners' finals, including a 4-stock in game 1 on Final Destination. In grand finals, he met Hungrybox once again and beat him 3-1. Leffen earned another major victory at WTFox, including an impressive 3-0 victory over Mang0's Falco in grand finals, marking three consecutive first place finishes in singles.

Following his three major wins, Leffen was seen as the favorite to win EVO 2015, the biggest event of the summer. However, he failed to repeat this success at EVO, as he was sent into losers by Hungrybox and then upset by Plup's Samus for 5th place.

At Super Smash Con 2015, Leffen bounced back and took first place once again in singles, beating Mew2King 6-1 collectively in winners' finals and grand finals. Mew2King answered back in their next meeting at PAX Prime 2015, where Mew2King famously took the tournament with a collective 6-0 victory over Leffen.

Due to his performances, Leffen was ranked 2nd on the Summer 2015 SSBMRank (only behind Armada); by now, Leffen had firmly established himself as a clear tournament favorite.

Leffen entered more American events in fall 2015. At Paragon Los Angeles 2015 he was sent to losers by Mew2King, and eliminated by Hungrybox, ending at 5th place. At HTC Throwdown, Leffen made it to grand finals from the winners' side, where he defeated Hungrybox 3-0.

2015-2016: Visa issues[edit]

Leffen's reign of dominance was cut short, however. While traveling to The Big House 5, he was denied entry into the United States and deported due to his lack of a workers' visa (as required due to his sponsorship by Team SoloMid). Leffen was unable to enter the Big House 5, and his visa issues continued to affect him for over a year, preventing him from entering many large tournaments, including Smash Summit, GENESIS 3, Battle of the Five Gods, and Smash Summit 2. Furthermore, he was denied a worker's visa from the United States, primarily for reasons that questioned Melee's legitimacy as a sport. The video showing the rejection letter started a movement to reverse the decision, including a petition on the White House's official website.[2][3] Eventually, Leffen was temporarily allowed into the United States up until and throughout July 2016, tentatively letting him attend EVO 2016.[4] However, due to his visa going through additional processing resulting from his previous deportation from the US, Leffen was ultimately unable to attend EVO 2016.[5]

Despite being unable to travel to the United States, Leffen was still able to compete in Canada, and entered majors in the spring of 2016. At Enthusiast Gaming Live Expo, Leffen lost to Axe and Duck to finish an underwhelming 7th. However, he rebounded at Get On My Level 2016, where he defeated Mew2King 3-2, Armada 3-1, Hungrybox 3-2, and Mang0 3-1 to take 1st place without losing a set. Leffen's GOML run is often regarded as one of the most difficult and impressive tournament runs in Melee history, as he defeated all four active Gods in succession.

Leffen's visa was finally accepted on October 3rd, 2016, allowing him to compete in the US again.[6] Leffen's first tournament back in the US was The Big House 6, where he elected to sandbag with secondaries, placing 17th. He ended the year ranked 5th on the SSBMRank 2016, largely due to his lack of attendance compared to the other top players.

2017-2020: EVO 2018 victory[edit]

After finally returning to full-time competition, Leffen was unable to replicate his dominance of 2015. While still regarded as a tournament threat, he failed to win a major throughout 2017 and the first half of 2018, ending 2017 ranked 6th on the SSBMRank 2017. Leffen additionally began competing in other fighting games at this time, including DragonBall FighterZ.

Leffen's biggest tournament win to date came at EVO 2018, where he finally won the coveted title after many years of coming short. After going down 0-1 vs. Hungrybox in winners' semis, he didn't drop a single game for the rest of the tournament; he made the comeback against Hungrybox to win 2-1, and then easily defeated Plup 3-0 in winners' finals, followed by a 3-0 over Armada in grand finals to win one of the largest Melee tournaments of all time. Leffen's EVO 2018 run is often regarded as one of the most dominant tournament runs in Melee history.

At Super Smash Con 2019, Leffen took 1st place, winning his first major since the EVO victory, notably 6-0'ing Hungrybox.

2020-present: Post-pandemic era[edit]

Leffen was one of the top players most heavily affected by the COVID-19 pandemic, due to his location in Europe. He was unable to enter many North American online events, as they were often region-locked for European players due to high ping issues. During this time, Leffen was perceived to be a top three player in the world, alongside Zain and Mang0, but it was difficult to compare his skill against other players due to a lack of results.

He received an automatic invite to Smash Summit 11, the first post-pandemic LAN major, but was unable to attend due to further visa problems.[7] As such, in 2021, he attended only one tournament in North America: Smash Summit 12, where he placed 5th.

Leffen began entering more North American events starting in 2022; by this time, he also had picked up another fighting game, Guilty Gear Strive, and competed in that title full time alongside Melee. Despite splitting time between the two titles, Leffen still proved that he was capable of winning a major and defeating the best players in the world. His first post-lockdown victory came at Battle of BC 4, where he beat aMSa, Hungrybox, and Zain twice. In 2023, he won Ludwig Ahgren Championship Series 5, where after losing to Joshman and Cody Schwab in pools, he managed to make it out of the Swiss bracket and into winners' top 16. He beat Hungrybox 3-0, Zain 3-2, Cody Schwab in winners' finals, and Zain once again in the runback.

During this time, Leffen also developed his secondary Sheik as a counterpick to Marth, due to his previous difficulties against Zain in the Fox-Marth matchup. He used Sheik to double eliminate Zain at both Battle of BC 4 and LACS 5, and is one of the few players who holds a positive record against Zain post-pandemic.

Other Smash games[edit]

Leffen also played Project M at a high level for a while, and was known as one of the best players of Captain Falcon, Fox, and Zero Suit Samus.

Leffen has occasionally played Smash 4, and notably pioneered the usage of Diddy Kong's up throw to up air combo.

Upon Super Smash Bros. Ultimate's release, Leffen often streamed the game and offered his own opinion on the meta. He was one of the early pioneers of using Pokémon Trainer and has since used the character successfully in tournaments. Leffen briefly dropped Pokémon Trainer in favor of Roy and Pichu in April 2019, citing that Pokémon Trainer was not worth the effort, but he would eventually return to the character. Leffen also began labbing Joker upon his release and discovered an infinite lock technique performed by repeatedly using short-hopped up aerials under the opponent while the opponent is on top of a platform. The technique has since been named "Leffoble" in honor of him.

At the end of April, Leffen announced his semi-retirement from Ultimate singles, mainly citing the smaller scene in Sweden and issues with online play making it difficult for him to get any meaningful practice.[8] However, the release of Hero saw his return to the game, and he intended to compete in EVO 2019, but issues with his visa kept him from doing so. Leffen continued to enter for both Melee and Ultimate at major tournaments such as Super Smash Con 2019, and although he put more importance towards Melee, he still found success in Ultimate, with set wins over Tweek, Salem, and other top players. Following his first place at DreamHack Winter 2019, Leffen announced he would once again be putting Ultimate on the backburner, instead focusing on Melee and other fighting games. He has since been critical of the game, which has brought about some controversy.


With Fox, Leffen is known for his consistent execution and movement, and boasts solid fundamentals in all aspects of the game, using a methodical and efficient approach, making him a very well-rounded player. Leffen has both a great neutral game, as he rarely overextends or overreaches in games even against weaker opponents, and a solid combo game, especially against fastfallers. He is renowned for his proficiency against Falco, Peach, and other Foxes, having made his first upsets against the Five Gods in those matchups. Leffen's prowess against Peach is so great that even Armada, the best Peach in the world, would primarily opt for the Fox ditto in tournaments instead, generally only playing Peach on Final Destination. He is also arguably the best Fox player in the world at edgeguarding, which heavily contributes to his success in the Fox ditto and several other matchups.

While Leffen is well-rounded, he undoubtedly focuses on mental fortitude and adaptation more than technical play. Leffen once stated in an interview that he believes many high-level players are held back by "flowchart" behavior that he is able to exploit. This is clearly exemplified by his ability to "clutch" out sets from losing positions, even from 0-2 deficits. Despite this, he still puts in the work to lab certain matchups or situations that give him trouble, showing his solid work ethic; he's even known to lab other miscellaneous characters solely to push the metagame forward. Along with Armada, he practices with Snowy for the Jigglypuff matchup and has flown him out to events such as Summit in order to prepare for facing Hungrybox in bracket.

Prior to his establishment as a top 5 player, Leffen had noticeable trouble against punish-heavy players. Despite his strong fundamentals, he struggled if his opponent could overwhelm him technically, leading to losses against Silent Wolf, Westballz, and Javi, among others. He also could not defeat Mew2King for a long time, even after he had upset the rest of the Five Gods, because of that aforementioned weakness. Leffen was also noted to be fairly poor at the Samus matchup, having, at one point, losing records with HugS and Duck, both of whom are considered far below his skill level. He has also lost three times to Plup in solo Samus sets. However, he has since overcome these weaknesses and no longer drops sets as frequently to these types of players, most notably not having lost to solo Samus since 2018.


Super Smash Bros. Melee[edit]


Ranking Time period Rank Character(s) Notes
SSBMRank 2013 January 2013 - December 2013 14th FoxHeadSSBM.png
Summer 2014 SSBMRank January 2014 - July 2014 6th FoxHeadSSBM.png
SSBMRank 2014 January 2014 - December 2014 6th FoxHeadSSBM.png
Summer 2015 SSBMRank January 2015 - July 2015 2nd FoxHeadSSBM.png
SSBMRank 2015 January 2015 - December 2015 3rd FoxHeadSSBM.png
SSBMRank 2016 January 2016 - December 2016 5th FoxHeadSSBM.png
Summer 2017 SSBMRank December 2016 - June 2017 5th FoxHeadSSBM.png
SSBMRank 2017 December 2016 - December 2017 6th FoxHeadSSBM.png
Summer 2018 MPGR December 2017 - July 2018 4th FoxHeadSSBM.png
MPGR 2018 December 2017 - December 2018 3rd FoxHeadSSBM.png
Summer 2019 MPGR December 2018 - July 2019 4th FoxHeadSSBM.png
MPGR 2019 December 2018 - December 2019 2nd FoxHeadSSBM.png
MPGR Summer 2022 March 2022 - July 2022 5th FoxHeadSSBM.pngSheikHeadSSBM.png
SSBMRank 2022 March 2022 - December 2022 7th FoxHeadSSBM.pngSheikHeadSSBM.png
SSBMRank Summer 2023 December 19th, 2022 - July 23rd, 2023 4th FoxHeadSSBM.pngSheikHeadSSBM.png
SSBMRank 2023 December 19th, 2022 - December 17th, 2023 HM FoxHeadSSBM.pngSheikHeadSSBM.png Ranked as an Honorable Mention due to low attendance

European Melee Power Rankings[edit]

Ranking Time period Rank Character(s) Notes
SmashEurope Spring 2016 Power Rankings Spring 2016 2nd FoxHeadSSBM.png
HEIR Spring 2018 Power Rankings Spring 2018 2nd FoxHeadSSBM.png
Phoenix Blue Ranking 2019 1st FoxHeadSSBM.png
EURank 2023 2023 HM FoxHeadSSBM.pngSheikHeadSSBM.png

Super Smash Bros. Ultimate[edit]

Panda Global Rankings Ultimate[edit]

Ranking Time period Rank Character(s) Notes
Fall 2019 PGRU July 13th - December 15th, 2019 Area 51 PokémonTrainerHeadSSBU.png

OrionRank Ultimate[edit]

Ranking Time period Rank Character(s) Notes
OrionRank Ultimate: Six Months In January 5th - June 30th, 2019 79th PokémonTrainerHeadSSBU.pngRoyHeadSSBU.png
OrionRank 2019 January 5th - December 15th, 2019 83rd PokémonTrainerHeadSSBU.pngTerryHeadSSBU.pngJokerHeadSSBU.pngRoyHeadSSBU.png

OrionRank Europe[edit]

Ranking Time period Rank Character(s) Notes
OrionRank Europe Top 75 January 2019 - March 2020 5th PokémonTrainerHeadSSBU.png

European Ultimate Power Rankings[edit]

Ranking Time period Rank Character(s) Notes
European Smash Rankings January 3rd, 2019 - January 13th, 2020 HM PokémonTrainerHeadSSBU.png

Tournament placings[edit]

Super Smash Bros. Melee[edit]

Tournament Date 1v1 Placement 2v2 Placement Partner Earnings
STIIG July 13th-20th, 2010 9th 4th AJP
SKN2 October 8th-10th, 2010 7th 7th AJP
B.E.A.S.T January 7th-9th, 2011 9th 13th AJP
SKN3 February 11th-13th, 2011 3rd 3rd AJP
Beauty April 15th-17th, 2011 3rd 5th AJP
Tampora 2 April 29th-May 1st, 2011 2nd 3rd AJP $195
Beauty 2 May 2nd-5th, 2011 2nd 2nd AJP
GENESIS 2 July 15th-17th, 2011 17th 13th AJP
B.E.A.S.T II August 10th-14th, 2011 4th 5th AJP $86.24
Tampora 3 November 25th-27th, 2011 4th 3rd Zoler $6.67
Beauty 3 December 2nd-4th, 2011 2nd 2nd Zoler
Apex 2012 January 6th-8th, 2012 33rd 25th Zoler
Gamers Meetup STHLM February 18th-19th, 2012 2nd 1st Fuzzyness
Epita Smash Arena 5 April 20th-23rd, 2012 5th 2nd Fuzzyness
Haags Kwartiertje 6 June 16th, 2012 4th 4th Beat
Smashers' Reunion: Melee Grande July 13th-15th, 2012 3rd 2nd Dr. PeePee $369
King Funk's Castle II: Måske October 4th-7th, 2012 3rd 2nd Ice
hf.lan 4 December 1st-2nd, 2012 2nd 3rd NMW $188.12
Apex 2013 January 11th-13th, 2013 17th 5th Ice
EVO 2013 July 12th-14th, 2013 9th 5th Ice
CFST: WarZone 2 September 1st, 2013 7th 2nd MattDotZeb
hf.lan 6 December 14th-15th, 2013 2nd 1st Ice $220.02
Apex 2014 January 17th-19th, 2014 4th 9th Dr. PeePee $628
B.E.A.S.T 4 February 12th-16th, 2014 1st 2nd Ice $1,239.03
Republic of Fighters 3 May 17th-18th, 2014 1st 2nd Fuzzyness $1,314
MLG Anaheim 2014 June 20th-22nd, 2014 5th 5th Hax $1,000
EVO 2014 July 11th-13th, 2014 9th 3rd Ice
COMEBACK I August 1st-3rd, 2014 2nd 1st Beat $156.66
Hit & Stun Tournament 2 September 6th-7th, 2014 3rd 2nd Ice
Beauty 8 September 12th-14th, 2014 2nd 1st Professor Pro
The Big House 4 October 4th-5th, 2014 3rd 3rd Hax $855
Smashsätra October 11th, 2014 1st
DrømmeLAN 4.0 November 7th-9th, 2014 2nd 2nd Ice
hf.lan 8 November 22nd-23rd, 2014 1st 1st Ice
Beauty 9 December 5th-7th, 2014 2nd 2nd Pop $138
B.E.A.S.T 5 January 9th-11th, 2015 1st 2nd Ice $2,971
Paragon Orlando 2015 January 17th-18th, 2015 3rd 3rd MacD $542
Apex 2015 January 30th-February 1st, 2015 3rd 3rd Ice $2,711
Cannes Winter Clash February 27th-March 1st, 2015 1st $407.86
NeoNebulous 7 March 28th, 2015 1st 1st G$
Beauty 10 April 2nd-6th, 2015 2nd 2nd Professor Pro $173
I'm Not Yelling! April 11th-12th, 2015 3rd 1st MacD $593
MVG Sandstorm April 18th-19th, 2015 5th 1st MacD $173
DrømmeLAN 4.5 April 24th-26th, 2015 2nd 2nd Fuzzyness
Press Start May 9th-10th, 2015 9th 2nd MacD
Headstomper '15 May 16th, 2015 1st 1st King Funk
Battle Arena Melbourne 7 May 22nd-24th, 2015 2nd 1st Blue2ez $737.27
CEO 2015 June 26th-28th, 2015 1st 2nd Hungrybox $4,698
FC Smash 15XR: Return July 4th-5th, 2015 1st $852
WTFox July 10th-11th, 2015 1st 2nd Mango $1,525
EVO 2015 July 17th-19th, 2015 5th $373
Super Smash Con 2015 August 6th-9th, 2015 1st 1st MacD $5,749
Heir II the Throne August 14th-16th, 2015 5th 2nd Ice
PAX Prime 2015 August 28th-30th, 2015 2nd 1st MacD $875
Paragon Los Angeles 2015 September 5th-6th, 2015 5th $373
HTC Throwdown September 19th, 2015 1st 2nd MacD $5,648
The Call of Ragnarok September 26th-27th, 2015 1st
Eclipse November 14th-15th, 2015 2nd 2nd Ice $1,973
DreamHack Winter 2015 November 26th-29th, 2015 9th 5th Ice
Kickstart 5 January 24th, 2016 1st 2nd Professor Pro
B.E.A.S.T 6 February 19th-21st, 2016 2nd 1st Ice $1,047.77
Webhallen Fridhemsplan 3/5 March 5th, 2016 1st
Kickstart 7 March 13th, 2016 1st 1st Lamp
HFLAN 12 April 9th-10th, 2016 1st 2nd BrTarolg
The Come Up 2016 April 23rd-24th, 2016 1st $311.22
Enthusiast Gaming Live Expo April 29th-May 1st, 2016 7th 2nd Hungrybox $120
Battle of BC May 14th, 2016 1st $989
Get On My Level 2016 May 20th-22nd, 2016 1st 3rd Hungrybox $3,078
Headstomper '16 June 4th-5th, 2016 1st
DreamHack Summer 2016 June 18th-21st, 2016 1st $4,700
Stockholm Monthly 6/28 June 28th, 2016 1st
Stockholm Weekly 8/8 August 8th, 2016 1st
Stockholm Weekly 9/13 September 13th, 2016 1st
Heir 3 August 19th-21st, 2016 7th 33rd (DQ) Yabasta $123
The Big House 6 October 7th-9th, 2016 17th
Stockholm Monthly 10/4 October 4th, 2016 1st
Stockholm Weekly 10/18 October 18th, 2016 1st
Eclipse 2 October 21st-23rd, 2016 3rd 2nd Ice
Stockholm Monthly 10/25 October 25th, 2016 1st
Smash Summit 3 November 3rd-6th, 2016 9th 3rd Mafia $432
DreamHack Winter 2016 November 24th-27th, 2016 3rd $3,000
UGC Smash Open December 2nd-4th, 2016 4th 2nd Ice $1,241
Don't Park on the Grass December 17th-18th, 2016 1st 2nd Ice $2,960
GENESIS 4 January 20th-22nd, 2017 5th 2nd Ice $511
LanETS 2017 February 11th-12th, 2017 1st 1st KirbyKaze
B.E.A.S.T 7 February 17th-19th, 2017 2nd 2nd Ice $1,003.92
Smash Summit Spring 2017 March 2nd-5th, 2017 3rd 2nd Ice $6,430
Full Bloom 3 March 25th, 2017 9th 5th Ice
Capital of Smash 2 April 8th, 2017 1st
DreamHack Austin 2017 April 28th-30th, 2017 7th $300
Royal Flush May 12th-14th, 2017 5th 2nd Ice $415
Smash 'N' Splash 3 June 2nd-4th, 2017 2nd $2,696
DreamHack Summer 2017 June 17th-18th, 2017 2nd $2,000
Smash @ Power 9 #39 July 6th, 2017 1st
GENESIS: RED July 9th, 2017 1st Ice
EVO 2017 July 14th-16th, 2017 9th
FUSE July 16th, 2017 7th Ice
Get On My Level 2017 July 30th, 2017 1st 1st Ice $1,820
Super Smash Con 2017 August 10th-13th, 2017 9th $54
Heir 4 August 17th-21st, 2017 1st $2,450
Shine 2017 August 25th-27th, 2017 5th 3rd Ice
Uppsala Weekly 9/18 September 18th, 2017 1st
GameTyrant Expo 2017 September 29th-October 1st, 2017 13th $300
The Big House 7 October 6th-8th, 2017 3rd $1,826.40
Canada Cup 2017 October 28th-30th, 2017 2nd 1st Mew2King
Smash Summit 5 November 2nd-5th, 2017 3rd 1st Armada $10,469.75
DreamHack Winter 2017 December 2nd-3rd, 2017 3rd $1,000
Valhalla January 4th-8th, 2018 1st
GENESIS 5 January 19th-21st, 2018 3rd $1,225
Phoenix Blue February 22nd-24th, 2018 2nd
The Mango March 18th, 2018 13th
Full Bloom 4 March 24th-25th, 2018 3rd $651
Ventus April 14th, 2018 1st 1st Beat $118
Flatiron 3 April 21st, 2018 1st
Smash Summit 6 May 3rd-6th, 2018 5th 1st Armada $990.45
King of Nordic: Super Smash Bros. Melee @ Birdie May 10th-13th, 2018 1st 1st Beat
Smash 'N' Splash 4 June 1st-3rd, 2018 3rd $2,136
Low Tier City 6 July 27th-29th, 2018 2nd
EVO 2018 August 3rd-5th, 2018 1st $8,118
Super Smash Con 2018 August 10th-13th, 2018 65th (DQ)
Heir 5 August 17th-19th, 2018 1st
The Big House 8 October 5th-7th, 2018 5th $516
Red Bull EWKND November 1st-3rd, 2018 1st $269.29
The Mang0: Homecoming November 10th-11th, 2018 1st $1,750
Smash Summit 7 November 15th-18th, 2018 2nd 5th Mango $8,927
DreamHack Winter 2018 December 1st-2nd, 2018 1st $2,700
GENESIS 6 February 1st-3rd, 2019 129th (DQ)
Get On My Level 2019 May 17th-19th, 2019 3rd $702.04
Smash 'N' Splash 5 May 31st-June 2nd, 2019 3rd
Smash Summit 8 June 13th-16th, 2019 3rd $3,472
Super Smash Con 2019 August 8th-11th, 2019 1st $3,838
Shine 2019 August 23rd-25th, 2019 5th $330
The Big House 9 October 4th-6th, 2019 3rd $1,090
Valhalla III January 9th-13th, 2020 1st
GENESIS 7 January 24th-26th, 2020 5th $118
Smash Summit 9 February 13th-16th, 2020 9th $1,387
Battle of the Armada - Melee Edition 2 Online August 15th, 2020 1st $355
Poilon Arena 3 Online November 12th, 2020 1st
Smash Summit 10 Online Europe Online November 19th-22nd, 2020 1st $1,200
Schweeklies #4 Online January 14th, 2021 1st
Valhalla Online Online January 30th-31st, 2021 2nd Melee Series #1 Online February 6th, 2021 3rd $120
Saturday Night LEVO #6 Europe Online February 13th, 2021 1st
The Upset Online February 27th-28th, 2021 1st $132
Saturday Night LEVO #9 Europe Online March 13th, 2021 1st
Poilon Colosseum Online May 8th-9th, 2021 1st $973
SWT: Europe Melee Regional Finals October 23rd-24th, 2021 1st $1,600
Smash Summit 12 December 9th-12th, 2021 5th
Pound 2022 April 22nd-24th, 2022 5th
Smash Summit 13 May 12th-15th, 2022 9th
Battle of BC 4 June 10th-12th, 2022 1st
The Big House 10 October 7th-9th, 2022 17th
DreamHack Rotterdam 2022 October 14th-16th, 2022 1st $1,350.28
Ludwig Smash Invitational October 21st-23rd, 2022 3rd $5,250
Smash Summit 14 November 3rd-6th, 2022 7th $1,593
Mainstage 2022 December 2nd-4th, 2022 5th
Scuffed World Tour December 18th, 2022 5th
GENESIS 9 January 20th-22nd, 2023 7th $375.90
Smash @ SPACE 2 February 28th, 2023 1st
The Coinbox #61Online May 16th, 2023 7th $150
Battle of BC 5 May 19th-21st, 2023 5th $306
Ludwig Ahgren Championship Series 5 July 7th-9th, 2023 1st / 16 $15,001
GENESIS X February 16th-18th, 2024 5th / 1,544
Battle of BC 6 March 29th-31st, 2024 9th / 398

Project M[edit]

Tournament Date 1v1 Placement 2v2 Placement Partner
GENESIS 2 July 15th-17th, 2011 3rd
King Funk's Castle II: Måske October 4th-7th, 2012 2nd 1st Fuzzyness
Apex 2014 January 17th-19th, 2014 9th
B.E.A.S.T 4 February 12th-16th, 2014 3rd
COMEBACK I August 1st-3rd, 2014 2nd
Hit & Stun Tournament 2 September 6th-7th, 2014 2nd
Beauty 8 September 12th-14th, 2014 3rd
The Big House 4 October 4th-5th, 2014 33rd
DrømmeLAN 4.0 November 7th-9th, 2014 2nd
hf.lan 8 November 22nd-23rd, 2014 1st
B.E.A.S.T 5 January 9th-11th, 2015 4th
Beauty 10 April 2nd-6th, 2015 1st
DrømmeLAN 4.5 All-Star April 24th-26th, 2015 1st
Paragon Los Angeles 2015 September 5th-6th, 2015 49th (DQ) 17th Professor Pro

Super Smash Bros. for Nintendo 3DS[edit]

Tournament Date 1v1 placement 2v2 placement Partner
DrømmeLAN 4.0 November 7th-9th, 2014 1st

Super Smash Bros. for Wii U[edit]

Tournament Date 1v1 placement 2v2 placement Partner
Beauty 9 December 5th-7th, 2014 1st
B.E.A.S.T 5 January 9th-11th, 2015 3rd
Paragon Orlando 2015 January 17th-18th, 2015 9th
DrømmeLAN 4.5 April 24th-26th, 2015 1st

Super Smash Bros. Ultimate[edit]

Tournament Date 1v1 placement 2v2 placement Partner
Valhalla II January 3rd-7th 2019 7th
GENESIS 6 February 1st-3rd, 2019 17th
Ultimate Nimbus March 3rd, 2019 9th
Smash Ultimate Summit March 8th-10th, 2019 9th
2GG: Prime Saga April 13th-14th, 2019 49th
Mega Smash Mondays 185 April 15th, 2019 13th
Pound 2019 April 19th-21st, 2019 13th
Get On My Level 2019 May 17th-19th, 2019 257th (DQ)
Super Smash Con 2019 August 8th-11th, 2019 17th
Shine 2019 August 23rd-25th, 2019 33rd
Mainstage September 20th-22nd, 2019 17th
Smash Ultimate Summit 2 October 24th-27th, 2019 9th
DreamHack Winter 2019 November 29th-December 2nd, 2019 1st


Despite being considered one of the best professional smashers in Melee, Leffen has led a controversial career as a Smasher, primarily due to a history of aggressive and rude behaviour towards other competitors, on- and offline.

Ban from European tournaments &[edit]

An icon for denoting incomplete things.

On 9th February 2013, Leffen was banned from Swedish Smash tournaments following extensive evidence of abuse towards various players in the scene.[9] Alongside the ban, Armada provided a large ""[10] featuring three documents; one 54-page Word document archiving numerous SmashBoards posts, one 14-page document of Swedish forum posts, and a miscellaneous archive compiled by Mike Haggar including SmashBoards and SmashFinland posts.

At the time, the official reasoning behind banning Leffen was the following;

  1. Demoralising comments towards newer players, demotivating them and thus hindering scene growth.
  2. Libel against numerous players, accusing them of stealing, lying, and even taking drugs, to destroy their image.
  3. Ableism against those with disabilities, diseases, etc.
  4. Spreading personal information.
  5. Extremely poor sportsmanship, including demeaning teammates in Doubles.
  6. Causing a spike in drama since joining the scene.
  7. Freezing people out of conversations through ignoring them, standing in front of them in conversation, and talking over them when doing so; the person this was done against was notably disturbed by this behaviour. Made fun of this individual's hearing disabilities.
  8. Sabotaging people's Smashfests and trips through manipulation.

After noticing his poor behavior, Swedish tournament organizers and other Melee professionals of his caliber gave him repeated warnings concerning his attitude. In August 2012, Leffen was eventually threatened with a ban from tournaments if he did not improve his attitude, but he did not take the claim seriously.

The discussion group announcing his ban compiled a significant amount of evidence of his poor behavior into a downloadable archive, and demanded that Leffen create a lengthy apology about all of his wrongdoings and how he would change his behavior in the future, should he return to the community. On March 21st, 2013, Leffen made his public statement asking for forgiveness; despite this, he was not immediately unbanned, and ended up missing almost one year's worth of local tournaments.


On January 24th, 2014, it was announced by Armada that the Swedish ban on Leffen was no longer in place [1]. Despite the ban, Leffen remained a relatively controversial figure in the community, especially on social media sites such as Reddit and Twitter, due to his vitriolic comments. remained notorious in the community, notably being mentioned in Chillindude829's infamous "Respect Your Elders" diss track, released in 2015. Testimony Leak[edit]

In January 2024, alongside a ban appeal,[11] Hax$ leaked the testimonies.[12] This was done under the justification of being the only remaining community member still holding them, and seeking to preserve the archive. Out of the nine testimonies, seven were revealed, with two being held back due to their particularly sensitive natures.

Some new facts can be extracted from these testimonies, adding further context to Leffen's original ban from the Swedish Melee scene;

  • Leffen was notably insulting in the Melee Back Room, with Strong Bad citing some particularly aggressive posts.
  • Hax$ mentions a stream where Leffen, seemingly unprovoked, attacked his character and repeatedly resorted to ad hominems in debate, and subsequently receiving repeated online harassment ever since. He additionally criticises Leffen for the way he handled his ban in 2013, calling a post he made in the Melee It On Me Facebook group manipulative.
  • C discusses a road trip where Leffen would deliberately and forcefully rock his seat back against their legs while locked against it, causing severe pain, in addition to a large-scale harassment campaign against them.
  • ROFL observes the negative effects Leffen's manipulation had on those around him; previously, he held respect for Leffen, but felt it decline over time as a result of this behaviour.
  • Zneffy discusses a time where they received an unprovoked verbal attack from Leffen following a match, followed by a non-apology where he talks down to Zneffy.
  • VJ, a tournament host, while never personally having conflicts with Leffen, discusses the reason why they made a personal decision to never allow Leffen in their tournaments, to the point of considering calling the police. In general, he discusses Leffen's elitist behaviour and general dishonesty, on top of his conflicts with other players.

Additionally, a letter to GENESIS 3 was enclosed, which had compiled the testimonies and demanded Leffen be banned from the tournament.

Censorship allegations[edit]

In December 2020, Samox released a documentary titled Metagame, compiling the history of the Melee metagame and following up from The Smash Brothers. In this documentary, is mentioned when discussing Leffen, but was cut from later releases following criticism from Leffen himself. To make up for it, in June 2021, a bonus episode titled "Godslayer" was released, which portrayed Leffen in a more positive light. This move was blasted by Hax$, accusing the Metagame documentary of being "censored" due to manipulation from Leffen,[13] in addition to numerous other allegations against Leffen's character. He evidenced this with the unusual timing of the situation, given Leffen's tweets blasting the Metagame documentary on his end.

In January 2024, Samox released a statement.[14] He notes that the mentions total 20 seconds, that his portrayal of Leffen was hardly positive, and, most notably, that someone threatened to sue him for the use of the content. He specifically noted that Leffen wasn't the party who threatened to sue.

Ban from commentary[edit]

At Heir II the Throne, Leffen was banned from commentary on all future European Smash Circuit events for saying that it wasn't a "serious" tournament and players were playing their secondaries and not trying. Leffen notably compared the tournament to The Foundry, a series notorious for its relaxed and non-competitive atmosphere. Many argued that the TOs had overreacted in their decision, and that a full ban was an excessively harsh punishment.

Opinion on Ultimate[edit]

Despite focusing on Ultimate for a year, Leffen has been openly critical about the game, even going as far as to say that playing top-level Ultimate "is just pure fucking torture to me."[15] As a result, he has butted heads with several other Ultimate professionals. Most notably, on September 26th, 2020, he argued with Rickles that streaming Ultimate was painful to him, that he would "rather flip burgers at [sic] mcdonalds if it paid the same amount," and that streaming Ultimate was harder than holding a minimum wage job.[16] This Tweet was met with backlash and mockery from the community: users noted the difficulty of minimum wage jobs especially during the COVID-19 pandemic while several Smashers such as Axe recounted how they hated working at their minimum wage jobs before they went professional. The Tweet eventually caused "Leffen" to trend on Twitter.[17] Leffen would later delete and apologize for his minimum wage Tweet.[18]

Libel allegations[edit]

On July 2nd, 2020, amidst a wave of sexual harassment allegations in the community, artist Jisu posted a tweet where she called out ZeRo for showing her hentai and explicit Craigslist ads when she was 15.[19] ZeRo later responded, admitting that he looked at hentai but denied that he had shown it to her, nor would he show it to an entire room of people. He also denied showing her the ads.[20] Following this defense, many people started to target Jisu for "clout-chasing." Leffen however would defend Jisu's claims by claiming that he saw ZeRo show people hentai in public, a statement that was backed up by a screenshot from an anonymous user later sent to Leffen.[21] ZeRo would later confirm this and many other allegations made about him to be true several days later. [22]

However, on June 25th 2021, Technicals would make a YouTube video where he challenged a vast majority of Jisu's allegations towards ZeRo.[23] In the same video, Technicals featured a brief section where he interviewed ZeRo about Leffen's allegations. ZeRo stated that he didn't remember any of the events that Leffen claimed to have happened. He would later state in the interview that he felt as if "he was trapped by Leffen into being pressured into admitting the truth" due to all of the allegations against him, and that by apologizing for Leffen and Katie, he would be creating a false agenda that Jisu's story would be correct. Both Leffen and Jisu have yet to respond to Technical's and ZeRo's allegations.

On September 9, 2022, ZeRo would release a video where he accuses Leffen as the biggest instigator during the allegations made against him, as he claimed Leffen lied about a story regarding ZeRo sharing hentai with Leffen and Japanese players when they housed together for Apex 2013, and also accused ZeRo for exchanging hentai with fans without verifying their age. Both the Japanese players and the fan have since denied Leffen's claim or retracted their statement.[24] ZeRo ultimately accused Leffen for profiting off the drama while tarnishing ZeRo's name in the process.[25]


  • Leffen was commonly considered a villain in the Smash community due to his reportedly rude behavior and trash-talk. He claimed that he enjoyed his given title due to the community's need of someone to root against, although a controversy existed over whether he should embrace it or not.
    • Leffen has also been compared to Gary Oak from the Pokémon anime due to their similar personality and appearance.
  • Leffen is the subject of the two-season Red Bull documentary Cultivation Leffen: Resurrection, which chronicles the time period from his initial ban through his visa issues and his triumph at Get On My Level 2016.
  • Leffen's lifetime set count against Mew2King (9-17) is his worst set count against a god (excluding PPMD).
  • Leffen is infamous for a spate of losses against Samus players HugS, Plup, and Duck in 2015 and 2016 after having mocked Chillin's losses to the same character on Twitter.
  • He is the first person to four-stock Armada in bracket, doing it twice at FC Smash 15XR: Return and at Smash 'N' Splash 4.
  • Leffen, along with Tafokints and Zomba, holds the title of the most money won in a single money match. He won $1,000 on three different occasions:
  • Leffen is sometimes referred to by his nicknames Yung Leff or Big Leff. Depending on how he plays and if he wins or loses, the adjective used can vary (Humoungous Leff, Massive Leff when winning, Small Leff, Minuscule Leff when losing). He has also been referred to these names by Dragon Ball FighterZ commentators.
  • Outside of Smash, Leffen has competed in both Dragon Ball FighterZ and Guilty Gear: Strive events. He is currently the only Smasher who was invited to a non-Smash-related Summit event (DBFZ's Summit of Power), as well as the only player to win an official EVO event for both platform and traditional fighting games (having also won EVO 2023 for Guilty Gear: Strive). He has since retired from Dragon Ball FighterZ, citing Toei's meddling in tournaments, and Arc System Works's way of patching as the two reasons he does not enjoy the game anymore.
  • Leffen is the subject of a popular Twitter parody account known as the Deep Leffen Bot, a natural AI learning model created by a PhD student that is trained on Leffen's tweets, various Smash subreddits, and other "unsavory source materials". The bot is popular in the Smash community for its humorous and creative content output. Although he initially blocked the bot's account on Twitter, Leffen has since come around and praised the bot for its artistic and comedic value.[26]
  • Despite being a sandbagging secondary, Leffen's Mewtwo reached the top of the ranked European Project Slippi leaderboards (and taking offline sets locally against top European players) under the alias of MewTwoMan.


External links[edit]