Luigi (SSBU)

Luigi (, Luigi) is a playable character in Super Smash Bros. Ultimate. He was confirmed alongside and the rest of the veterans on June 12th, 2018 during E3 2018, with him and Yoshi being the last two veterans to be revealed. As in his appearances prior to Super Smash Bros. 4, he is unlockable, instead of being available from the start. Luigi is classified as Fighter #09.

As in SSB4, 's portrayal of Luigi from Super Smash Bros. Brawl was repurposed for Ultimate.

Luigi is ranked 47th out of 82 on the current tier list, placing him at the end of B+ tier. This is a noticeable drop from his 18th out of 54 placement in SSB4. Similarly to his brother, Luigi has excellent frame data, with low startup and ending lag on the majority of his kit, making him a very difficult character to punish. His outstanding air game is augmented by his strong aerials having fast startup, low ending lag (except neutral and back aerials) and landing lag, and lenient auto-cancel windows, with all of them being able to auto-cancel from a short hop. Additionally, Luigi boasts incredible combo ability and KO power: his down throw is one of the best combo starters in the game, and allows him to either perform consistent zero-to-death combos on the vast majority of the roster or set up for a kill via Super Jump Punch, Luigi Cyclone, or a sweetspotted back aerial at high percentages. Finally, Luigi Cyclone's frame 1 invincibility when used in the air gives Luigi a reliable combo breaker.

However, Luigi is still plagued with heavily exploitable drawbacks that he had in previous games. His overall mobility is sluggish, with his air speed being one of the slowest in the game. Luigi's pitifully slow air speed is an especially painful hindrance, as it makes him susceptible to juggling. Along with his slow ground movement, his ground game is also further brought down by his below average range, which makes it difficult for him to fight against camping. Lastly, Luigi's recovery is very predictable and linear, as Green Missile only grants Luigi horizontal distance with noticeable end lag, while Super Jump Punch only travels straight upwards with no horizontal gain. Finally, Luigi Cyclone lost almost all of its utility as a recovery and gimping tool, as it no longer grants Luigi any vertical or horizontal distance for recovery, nor can it gimp opponents offstage. Additionally Luigi's disadvantage state is also poor due to his low air mobility and his limited options to escape juggles, while he can use Luigi Cyclone to potentially escape combos and juggles, it can be fairly predictable and the opponent can easily punish Luigi due to the move's high ending lag.

Overall, Luigi is a character who, in the right situation, can setups for quick and unexpected KOs, but on the other hand his weaknesses can allow opponents to take advantage of his poor mobility and predictable recovery. This has allowed him to foster a good-sized playerbase spearheaded by players such as and, prior to his ban,.

How to unlock
Complete one of the following: Luigi must then be defeated on Luigi's Mansion (the Ω form is used in World of Light).
 * Play VS. matches, with Luigi being the 33rd character to be unlocked.
 * Clear with  or any character in his unlock tree, being the 5th character unlocked after.
 * Have Luigi join the player's party in World of Light.

Attributes
Luigi is a middleweight whose attributes deviate from most other characters in his weight class. Luigi sports fairly average walking speed, dashing speed, and air acceleration, a decent initial dashing speed, below-average gravity, slow falling speed, low traction, the 2nd slowest air speed, and the 4th highest jumps. As a result, Luigi is quite floaty and his mobility is fairly sluggish overall, especially in the air.

Luigi's greatest asset is his outstanding frame data, which is easily among the fastest in the game. Because of this, similarly to his older brother, Luigi can be very difficult to punish; only two of his standard moves and five of his attacks overall have more than 9 frames of startup lag (forward smash, down aerial, Fireball, Green Missile, and Luigi Cyclone), a multitude of his moves hit on or before frame 5 (such as neutral attack, dash attack, neutral aerial, up aerial and his tilts), and the vast majority of his moveset has low ending lag, granting him incredible attack speed and an excellent punish game; both points are complemented by the utility of his overall moveset. Neutral attack's damage output and range are average at best, yet its two hits can lock. Its first hit also comes out on frame 2, which makes the move a fairly useful option for warding off nearby opponents. Luigi's tilt attacks also have their own perks: forward tilt can be angled and is useful for spacing, up tilt has excellent combo and juggling potential, and down tilt is an incredibly quick and highly spammable move that can combo into itself and a few other moves while also being able to consistently perform 2 frame punishes at the edge. Lastly, Luigi's dash attack has quick startup; when coupled with its reduced ending lag, increased damage output and higher knockback, it is a much better move for approaching and attacking than in previous installments.

Luigi's smash attacks are among the fastest of their kind, have below-average ending lag, and are strong enough to be reliable finishers. As a result of these traits, they allow Luigi to quickly and effectively punish opponents close to him while also rendering him being difficult to punish on shield. Forward smash deals extra shield damage, up smash is an effective anti-air attack due to rendering Luigi's head intangible while its hitboxes are active as well as functioning as an effective out of shield option, and down smash is very useful for punishing rolls thanks to its minimal lag, respectable damage output, and long range, with its back hit being an especially good finisher. Both up smash and down smash also have set-up potential at low percentages if Luigi successfully covers the opponent's options afterward.

Despite his extremely poor air speed, Luigi has a fantastic set of aerial attacks, courtesy of them possessing fast startup, lenient auto-cancel windows, quick interruptibility (except for neutral and back aerials) and low ending lag in general. In terms of auto-canceling, he can auto-cancel all of his aerials with a short hop, can auto-cancel all of them except neutral aerial with a short hop fast fall, and can use forward, up and down aerials twice with a single short hop. Lastly, he can use his forward and up aerials twice with a single short hop without suffering from landing lag. Neutral aerial is the only sex kick that consistently launches an opponent vertically, which grants it a few notable perks: the clean hitbox deals high damage and respectable knockback, making it a great combo breaker and even a situational KO option while near the upper blast line at high percentages, while both it and especially the late hitbox are very useful combo starters when used with a short hop. Forward aerial has the lowest ending lag of its kind and launches at the Sakurai angle; at low to medium percentages, these traits make it very reliable for approaching, down throw-initiated combos into itself, neutral aerial and up aerial, as well as a reliable edge-guarding option at high percentages. Back aerial has the highest ending lag of Luigi's aerials by a noticeable margin, but its minimal startup, decent range and powerful clean hitbox collectively enable it to function as a safe and reliable option for KOing, edge-guarding and (when used via a reverse aerial rush) approaching. Up aerial is useful for combos: it can either extend them or, thanks to having the lowest amount of landing lag out his aerials, use its clean hitbox to start them at low percentages when SHFF'd due to its clean hit dealing above-average damage for a combo move. Its generous auto-cancel window and very low ending lag also allow Luigi to use it twice in a single short hop and still auto-cancel it successfully, a trait it shares with his forward aerial and 's neutral aerial. Lastly, down aerial is safe to use and has a clean hitbox which is a fast meteor smash, coming out on frame 10 and with only 18 frames of ending lag, the lowest of any meteor smash. Due to his powerful aerials with generally low lag all around, Luigi has an outstanding air game.

Luigi has an excellent grab game, but unlike in past installments, he has a tether grab due to him using the 's to grab an opponent. As a result, Luigi can grab opponents from a fairly long distance, preventing the necessity for him to get up close to do so. It also provides Luigi with a grab aerial, in which the suction cup functions as a projectile that deals minor damage and knockback. This grants Luigi an additional edge-guarding option and deceptively useful combo option that, unlike most projectiles, cannot be absorbed or reflected. Like Mario, Luigi has an average pummel, which can deal multiple hits before being followed up with any of his useful throws. Forward throw deals respectable damage and is useful for repositioning opponents or setting up edge-guards against them at high percentages. Back throw also deals respectable damage and great knockback, allowing it to KO beginning at 120% or even earlier with rage. Unlike Mario's back throw, it also lacks a noticeably long animation, which makes it noticeably more difficult for the opponent to use directional influence to survive it. Up throw deals average damage and knockback, and possesses follow-up potential into forward or up aerials at low to medium percentages, depending on the opponent's DI. It also possesses a collateral hitbox to hit bystanders. Lastly, down throw is Luigi's primary combo starter and is one of his most useful attacks: it deals average knockback, has low ending lag, and launches at a vertical angle, which collectively enable it to lead into potent and highly damaging combos, even being able to lead into potential zero-to-death combos. Down throw can combo into moves such as up tilt, up smash, all of Luigi's aerials, Super Jump Punch and Luigi Cyclone, due to its aforementioned traits. It also functions as an excellent setup for KOs, such as by comboing into Super Jump Punch, back aerial, or Luigi Cyclone at high percentages. Although situational, down throw also has a collateral hitbox before the throw that can hit bystanders, similarly to up throw.

As a pseudo-clone of Mario, Luigi has a pair of special moves that are derived from his older brother, yet his versions deviate in noticeable ways. Fireball is a projectile that is useful for pressuring, hindering an opponent's approach, or setting up an attack. Unlike Mario's Fireball, Luigi's is unaffected by gravity and undulates; these traits make it somewhat less effective at hindering an opponent's recovery attempt, but allow it to cover a consistent area horizontally and vertically. Compared to Mario's version, Luigi's Fireballs have less ending lag as well as a clean hit that deals more damage, allowing him to throw another one just 1 frame before the clean hitbox ceases. Luigi's Super Jump Punch has fast startup like Mario's, but propels him vertically instead of diagonally. By extension, it consists of a sweetspot and sourspot, instead of multiple hitboxes like Mario's. Its sweetspot boasts devastating power, which makes it a very potent punishment option, yet it is very risky because of its high ending and landing lag and its sourspot being mostly useless aside from being a niche gimping option.

Aside from these, Luigi's other special moves are completely distinct from Mario's. Green Missile deals damage and covers horizontal distance, both of which can be increased thanks to its ability to be charged, giving KO potential to the fully charged version. However, it also has a one-in-ten random chance of misfiring; in this case, it becomes even stronger than the fully charged version, and travels much further. Lastly, Luigi Cyclone grants Luigi some invincibility frames on startup, enabling him to break out of combos or contest opposing attacks effectively. It also functions as a KOing option near the upper blast line, and is a guaranteed follow-up from down throw even at high percentages, which can function as a reliable KO confirm (especially on platforms).

However, Luigi has some notable disadvantages. He has fairly sluggish mobility, with his extremely slow air speed and floaty physics making it difficult for him to land onstage, especially against faster characters, thus giving him a notable weakness to juggling. His range, even compared to Mario's, is well below-average and thus he struggles to approach characters with ranged or disjointed attacks, such as and. Compared to Mario, Luigi's lack of a reflector also makes it more difficult for him to deal with projectile camping (especially against characters such as, , and ) when combined with his awkward mobility.

Additionally, Luigi's poor aerial mobility hinders his ability to approach with his aerial attacks, as well as his recovery. On top of this, his recovery, although long-distanced, is linear, slow, predictable and fairly susceptible to gimping and edgeguarding. Luigi Cyclone barely grants any additional height compared to previous games, which leaves him reliant on Super Jump Punch and Green Missile for recovering; the former travels directly upward only, and the latter has noticeable lag, cannot sweetspot edges, and relies on either charging or its random misfire chance to cover a serviceable horizontal distance.

Overall, Luigi is a very solid character, but unlike Mario, he can have a tendency to run hot and cold. His extremely fast frame data, devastating combos and strong air game and grab game collectively make him a force to be reckoned with, so long as his opponents make careless mistakes. Luigi's overall combo game, KO potential, and advantage state are easily superior to his brother's, having many different set-ups that can deal absurdly high damage within seconds, and then score KOs immediately thereafter. However, Luigi's short range, mediocre grounded mobility, abysmal aerial mobility, and predictable side special and up special force him to fight at close-quarters all the time, hindering both his approach and recovery. Because of this, a mastery of Luigi's recovery mix-ups and powerful combo game is crucial to achieving success with him.

Changes from Super Smash Bros. 4
Luigi has received some noticeable changes in his transition from SSB4 to Ultimate, with some altered animations and the introduction of the Poltergust G-00 to Luigi's moveset resulting in his moveset being further decloned from his brother. Collectively, these changes have resulted in a mix of buffs and nerfs for Luigi in the transition to Ultimate, but he was nerfed slightly overall. While Luigi received numerous buffs and changes that improve his strengths and benefit him, he has also suffered from a few major nerfs; both points are also affected by the universal changes to the game's engine, which were a mixed bag for him.

Luigi's direct nerfs have affected his playstyle quite noticeably. Luigi Cyclone travels much less vertical distance via button mashing, removing all of its usefulness for recovery, as even with very fast mashing, Luigi barely gets any additional distance at the end of the move. Alongside the addition of windboxes to it, this also removes its ability to gimp opponents and KO them at virtually any percentage if timed correctly, which was a crucial technique to his success in SSB4.

In terms of indirect nerfs, the changes to air dodging have both helped and hindered Luigi, but hurt him overall: due to his floatiness, the reintroduction of directional air dodges allows him to use one for recovery in a pinch, but his air dodges have drastically more ending lag relative to the rest of the cast, thus making them more punishable, and recovery mix-ups with them are almost unfeasible due to the ability to only use one before landing. When combined with his air speed remaining the second worst in the game, as well as the severe distance nerf to Luigi Cyclone, his recovery is much more linear and easier to intercept, causing Luigi to become much more prone to edge-guarding and early offstage KOs, despite Super Jump Punch and fully charged Green Missile granting slightly more distance.

The addition of the Poltergust G-00 has brought both benefits and drawbacks to Luigi. His grabs are now much longer ranged while retaining only moderate ending lag for their range, and Luigi now has access to a grab aerial, the latter of which can be used as a spacing tool, start and/or extend combos, as well as even edge-guard opponents. Conversely, Luigi's grabs possess much more startup, and are more prone to punishment due to the ability to cancel spot dodges earlier into attacks, making them much riskier to use; this especially weakens Luigi's ability to shield grab, limiting his defensive game and the usage of his pivotal down throw.

However, Luigi has also received several buffs, with said buffs being of greater quantity than his nerfs. Some of his least useful moves in SSB4 have been significantly improved; down tilt can be interrupted twice as fast and deals less knockback, allowing it to poke opponents much more safely and increasing its combo potential, while his dash attack has considerably decreased ending lag, connects more consistently, and has increased power, making it much safer and more reliable as a burst option, while its higher power gives it utility as a potential KO option near the edge at high percentages. Additionally, his existing KO options have been improved overall, as forward smash, up smash, down aerial, sweetspotted Super Jump Punch and Luigi Cyclone all have increased knockback, forward smash and down smash's launching angles are much more favorable for KOing outright and edge-guarding, down smash's sweetspots out-prioritize its sourspots, and back throw is more effective at KOing due to its much faster and farther release making it harder to DI.

Further complementing these changes, Luigi's already excellent combo game has been improved as well. His new up tilt has less ending lag and more range in front of and above him compared to his previous up tilt, up aerial has less ending lag, and down throw leads to deadlier combos, having more consistent KO setups and even potential zero-to-death combos due to its redistributed damage output, lower ending lag and Luigi's faster jumpsquat. Lastly, Luigi Cyclone has received far more utility overall to compensate for its recovery and gimping potential being removed: in addition to its aforementioned higher knockback, it inflicts more damage, pulls opponents in more consistently thanks to its new windboxes, connects more reliably, has increased range, and grants invincibility on startup; in particular, the lattermost change means Luigi has the fastest option to break out of combos in the game.

Luigi also benefits from some of the universal changes. Like the rest of the veterans, Luigi has had decreased landing lag in all his aerial attacks, a faster jumpsquat (now having a 3-frame jumpsquat like the rest of the cast), and his mobility enhanced in most areas, but most importantly, his infamously low traction has been greatly increased, which somewhat alleviates his problems with approaching and significantly improves his out of shield options. The increased shieldstun on grounded moves in comparison to SSB4 makes Luigi harder to punish on some of his moves, notably his newly improved down tilt. In addition, unlike most characters, Luigi has increased falling speed and gravity, making him less vulnerable to juggling while the latter increases his jump speed, allowing him to more easily take advantage of his buffed down throw and combo game when combined with his faster jumpsquat.

Overall, Luigi has become even more polarizing than in SSB4: while his combo and KO capabilities have been improved, Ultimate's game engine and nerfs to crucial aspects of his toolkit have made it harder for him to take advantage of his strengths and render him easier to KO due to his worsened recovery. Because of this, Luigi fares overall worse than in SSB4, though his numerous options and terrific advantage still make him a viable character.

Update history
Luigi received a mix of buffs, nerfs and glitch fixes via game updates, but was buffed slightly overall. Update decreased his up aerial's ending lag, which improved its combo potential and restored its ability to auto-cancel with a short hop like in SSB and Brawl. Update granted Luigi a handful of buffs, with the most notable being a noticeable increase to Luigi Cyclone's knockback. Thanks to this buff, Luigi Cyclone now functions as a reliable KO confirm from down throw at high percentages when used on platforms.

Aside from this, Luigi received a few quality of life buffs: his up smash's knockback was increased, Green Missile's ending lag was decreased, and both his standing and pivot grabs gained 1 more active frame apiece. However, this update harmed Luigi more so than helped him by removing his down aerial's ability to meteor smash grounded opponents, which reverted it to how it functioned in SSB4. This nerfed most of its combo potential, particularly in regard to its consistency at performing zero-to-death combos.

As part of update 's near-universal nerf to projectiles, Fireball's shield damage output was decreased. Update improved his grab aerial's range by repositioning its plunger, and slightly improved his neutral attack's consistency. However, an adjustment to the timing of Luigi Cyclone's invincibility resulted in its utility being worsened slightly. Lastly, update noticeably improved his dash attack's consistency by decreasing its looping hits' knockback and adjusting its penultimate hit's angles. When coupled with the damage output buff it received in the transition to Ultimate, Luigi's dash attack has become more reliable both as a burst option and as a risky, yet viable KO option.

Overall, Luigi fares mildly better than he did at the launch of Ultimate. Although down aerial's combo potential was worsened noticeably, his combo game remains potent thanks to the retention of his other inherent strengths, up aerial's ending lag being decreased, and Luigi Cyclone's KO potential improving.

 

 

 

 

 

 

 

 

Moveset
For a gallery of Luigi's hitboxes, see here.
 * Luigi can crawl.
 * Luigi possesses a tether grab.
 * It can be used as a grab aerial, but not as a tether recovery.

On-screen appearance

 * A green appears, and Luigi leaps out of it while saying "Let's-a go!" nervously and sporting a frightened expression that heavily resembles his appearance on the cover artwork of .

Taunts

 * Up taunt: Performs 5 poses in very quick succession. When switching from pose to pose he says, "Hoh hah hee heh hoo!"
 * Flashes the . This pose resembles the one he assumes upon collecting an item in Luigi's Mansion.
 * Points both his fingers in the direction he is facing, looking frightened.
 * Holds his finger under his nose and looks toward the screen. This pose heavily resembles the one he assumes in his individual artwork for .
 * Crouches down to the floor with his back turned to the player. This pose heavily resembles his Bogey animation from the Nintendo 64 version of Mario Golf.
 * Assumes a scared expression and pose with his hands on his cheeks. This pose heavily resembles his appearance on the cover artwork of Luigi's Mansion.


 * Side taunt: Planks while saying "Pow pow." Due to this taunt moving Luigi forward into the z-axis and lowering his hurtbox, some attacks may actually miss him as a result.
 * Down taunt: Bashfully kicks the ground while sighing. It is one of the few taunts in the game to inflict damage; it deals 2% and meteor smashes opponents with high set knockback, making it a surprisingly reliable combo starter onstage and allowing it to one-hit KO opponents who are off-stage or hanging on an edge. It is similar to the animation Luigi performs when he loses a in .

Idle poses

 * Rubs the back of his head sheepishly.
 * Pulls his nose, which stretches slightly and then recoils back into place.

Crowd cheer
 

Victory poses

 * Left: Planks twice, much like in his side taunt and his artwork in SSB4. His nose twitches in brief intervals after the second plank.
 * Up: With his back to the screen and his hands on his hips, Luigi nods his head twice. Then, he turns around and makes gun motions with his fingers, saying "Bang bang!" He continues to alternate between pointing his fingers and nose to the right and left.
 * Right: Childishly flails his arms about in the air, first towards his right side and then his left. Afterwards, now exhausted, he gasps while holding his left hand out and resting his right hand on his knee. This is similar to his "character chosen" animation in SSB and his dash attack, albeit with a different ending animation.

Most historically significant players
See also: Category:Luigi players (SSBU)


 * - The best Luigi player of all-time, notably placing 3rd at and 4th at  and . His highest ranking was 14th on the OrionRank Ultimate: Eclipse, the highest-ranking Luigi player on a notable global ranking. However, he has since been banned in several regions due to his conduct while drunk.
 * - Debuted during the online metagame and was the best Luigi in North America's online metagame, with notable placements such as 2nd at the . Offline, he is one of the best Luigi players in North America since 2023, placing 6th at the, 17th at the supermajor , and 25th at the supermajor , upsetting in the latter event.
 * - One of the best Luigi players in the world since mid-2022 and the second Luigi player ranked top 50 on a notable global ranking, ranking 47th on the LumiRank Mid-Year 2023. His 2nd-place finish at marks the highest placement for a Luigi player at a major.
 * - One of the best Luigi players in the world since mid-2023, thanks to a string of strong major performances such as 4th at, where he also upset and , as well as 9th at both  and.
 * - The best Luigi player in North America following Elegant's ban, and one of the best players in Mexico. Although his activity has been either online or in-region, he has won many regionals in his region and has also placed highly at all Mexican majors he attended, including 9th at and 17th at both  and . He is also ranked 66th on the UltRank 2022.
 * - The best Luigi player in Japan in 2021 and 2022. His upset over at  is the largest upset at an Ultimate major, with an upset factor of 14. He has also placed highly at several majors, including 9th at, and was ranked 90th on the OrionRank 2022. Since 2023 he has been playing more , although he keeps Luigi as a secondary or counterpick.

Tier placement and history
Initially, Luigi was seen as noticeably inferior to his appearance in SSB4. This is because some of Luigi's most useful tools from the previous game were significantly nerfed: Luigi's new grab was initially viewed rather negatively because it had more lag, and Luigi Cyclone almost lost the ability to grant vertical distance when mashed, weakening Luigi's recovery and removing Luigi's Cyclone ability to gimp. Although Luigi initially had a zero-to-death combo with his down throw and aerial, update 2.0.0 would make it harder to perform. This, along with his results being mediocre at best at the time, caused many people to believe that Luigi was no longer viable.

Despite Luigi's perception, however, several Luigi mains such as, , and managed to produce many strong results as the metagame progressed. This, along with the numerous buffs he gained the transition to Ultimate, helped improve Luigi's perception in the community as the buffs were far more significant than previously thought.

As offline competitive play has returned, Luigi's results have improved significantly; his best player, Elegant, achieved top 8 placements at several major tournaments, including a 3rd place finish at. , an up-and-coming Luigi main during the Wi-Fi era, has also managed to achieve success with Luigi offline. Thanks to his playerbase, Luigi is now perceived primarily as an upper mid tier to lower high tier character, currently ranking at 47th, although some players believe he should be ranked even higher.

: Luigi's Nightmares
Luigi's opponents are fighters who demonstrate a creepy or scary motif, either because of their appearance (such as Dark Link), the series they hail from (such as Bayonetta), or both (such as Ridley). This theme is further referenced by each Round being fought on a stage that is gloomy and/or set at nighttime. The boss of Luigi's route, Dracula, also fits this theme due to being a vampire; by extension, his role as the boss also references Luigi's exploration of his castle during and 's reveal trailer.

Credits roll after completing Classic Mode. Completing it as Luigi has  accompany the credits.

Role in World of Light
Although Luigi does not appear in the World of Light opening cutscene, he was presumably vaporized and later imprisoned alongside the rest of the fighters (sans ) when Galeem unleashed his beams of light.

Luigi was one of the many fighters who fell under Dharkon's control upon Galeem's first defeat, and he can be found in the Mysterious Dimension, being guarded by the spirit after awakening.

Spirits
Luigi's fighter spirit can be obtained by completing. It is also available periodically for purchase in the shop for 300 Gold, but only after Luigi has been unlocked. Unlocking Luigi in World of Light allows the player to preview the first spirit below in the Spirit List under the name "???". As a fighter spirit, it cannot be used in Spirit Battles and is purely aesthetic. His fighter spirit has an alternate version that replaces it with his artwork in Ultimate.

Additionally, Luigi makes an appearance in various primary and support spirits.

Trivia

 * Oddly, the physics of the are different when the game speed is modified, which reduces the grab ranges of all of Luigi's grabs.
 * In 's reveal trailer, Luigi was shown having his soul taken by Death, which led to humorous posts from the community claiming that Luigi had been officially "killed off". In turn, wrote a mock obituary for Luigi. Nintendo UK eventually responded with a short message of "Luigi is okay" as a nod to this event.
 * Luigi was not shown from the rest of the Super Smash Bros. Ultimate Direct (not counting menus and the like) of August 8th, 2018. Despite this, and  were present in this Direct, even after being killed in 's reveal trailer.
 * Luigi is also one of three characters to not appear in any in-battle footage in the Direct, the others being and the s.
 *  was teased before it was officially announced through Simon's trailer, as Luigi can be seen using the new Poltergust G-00 from the aforementioned game.
 * Luigi can be seen performing Green Missile in [[Media:SSBU Panoramic.png|the panoramic artwork]] for Ultimate. He also does this in a piece of [[Media:SSBMCast.jpg|group artwork]] for Super Smash Bros. Melee.
 * Luigi is the first and only veteran in the series to have his standard grab be changed into a tether grab between installments.
 * In a promo screenshot for the game depicting Luigi in his Waluigi-inspired alternate costume, the "L" on his cap was green, but in the final game, it is purple, like in Super Smash Bros. 4.
 * Luigi is one of two characters to represent an upcoming game at the time of the game's release through his moveset. The other character with this distinction is through his  alternate costume.
 * Luigi's yellow alternate costume has a light blue L on his cap in-game, as opposed to it being yellow and matching the rest of the cap in his render. The head icon, however, properly colors the L.
 * Prior to update 3.1.0., the used during Luigi's on-screen appearance would not appear to have any lighting effects, unlike Mario's.
 * Luigi is the only member of the Original 12 to be unlocked in The Dark Realm in Adventure Mode, and the only one to be unlocked in a sub-area.
 * In the Super Smash Bros. Ultimate Direct of November 1, 2018, Sakurai noted during the part where he described that Luigi is the original Echo Fighter, as he was initially introduced as a simple palette swap of Mario in 1983's  with identical abilities. Likewise, Luigi was originally a full clone of Mario in the original Super Smash Bros., though he has since been heavily de-cloned to the point of being a pseudo-clone as of Ultimate.
 * Alongside and, Luigi is one of three characters in Ultimate with a taunt that cannot be canceled, due to the fact that their non-cancelable taunts have hitboxes.
 * Interestingly, it is still possible to cancel 's taunts despite them also possessing a hitbox.
 * Luigi's official artwork is based on the third hit of his neutral attack, albeit featuring him with a scared expression.
 * Through unlocking through versus mode and awakening all fighters in World of Light, Luigi is the last member of the Original 12 to be unlocked. However, via Mario's unlock tree in, Luigi can potentially be the first of the Original 12 to be unlocked.
 * Despite having all of his animations mirrored, Luigi has different animations when using moves that involve Poltergust G-00, so he may not face the screen when he uses his grabs and his Final Smash. He is the only character with mirrored animations to hold this distinction.
 * If Luigi blocks an attack with his shield, he reverts to his shielding pose from SSB4.
 * If Luigi uses his grab immediately after inputting his dash attack, his dash attack voice clip will play during his grab animation.
 * If Luigi is cursed or using Superspicy Curry, there is a glitch which results in his wincing expression overlapping his angry expression if he performs either his forward aerial or charges up Green Missile.
 * If Luigi gets counterattacked by Blade Counter while facing left, he will be forced to show his back due to Blade Counter forcing him to use the incorrect grab release animation.
 * There is a minor sound effect oversight regarding Green Missile, in which its popping sound effect plays after Luigi has already removed his head after colliding with a wall. This is due to the animation being sped up from SSB4 without the sound effect being adjusted to match the animation.