Super Smash Bros. series

One-hit KO

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This article is about attacks with enough knockback to KO in one hit. For KOs that occur instantly and bypass all knockback, see Instant KO.
For the smasher sometimes known as "OHKO", see Okoru.

A one-hit KO, commonly abbreviated as OHKO (also referred to as an Instant KO in Melee), is an attack in the Super Smash Bros. games with such high base knockback that it will KO an opponent at 0%. Such attacks currently exist in every installment of the series.

Definition[edit]

In general, a move is considered a one-hit KO if:

Another common standard is to compare the move's knockback to the smash attack of the Home-Run Bat, one of the few moves intended to be the quintessential OHKO by the developers.

Moves with the potential to OHKO are not necessarily guaranteed to do so, and may fail to OHKO under the following circumstances:

  • The opponent techs, DIs, utilizes momentum cancelling, and/or crouch cancels to reduce the knockback or alter the trajectory of the attack.
  • The opponent is flung into a wall, which absorbs enough knockback to prevent the OHKO, or successfully executes a wall tech.
  • The move's sweetspot (if any) does not land (such as Roy's Flare Blade in every game featuring him).
  • The move requires more hitboxes to land but some of them fail (for example, Lugia's Aeroblast in Melee, which can whiff if the character is hit on the edge and escapes; in Brawl, it deals a single, immensely powerful hit which always OHKOs, but suffers from a smaller hitbox).
  • The stage is extremely large (e.g. Temple, New Pork City, and 75m), or the opponent is at the far edge of a stage.
  • The move was weakened previously due to stale-move negation.
  • Opponents are under an effect that makes them more resilient (such as being giant, metal, or in an event that reduces the knockback they sustain), or the player is weakened (such as being tiny or given a lower handicap).
  • The launch rate is lower than standard, reducing knockback.
  • The opponent's gravity is affected via equipment.
  • The player is under the effect of a sticker or a spirit that increases resistance to flinch. It is only possible in Adventure Modes.

A Final Smash executed using Final Smash Meter always loses its OHKO potential, unless specific spirits prevent this.

List of One-Hit KOs[edit]

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This page lists the moves that can OHKO within the rules mentioned above.

Certain moves and situations are not considered to meet the definition of one-"hit" KO's:

Some stage hazards or enemies are capable of OHKOing on their respective stages, and will be listed below.

In Super Smash Bros.[edit]

Moves that KO at 0% are almost nonexistent in the original Smash. In fact, aside from the Home-Run Bat, only one move in the game is able to OHKO, under uncommon conditions.

Items[edit]

Video[edit]

The following video demonstrates the main moves that KO at 0% in Smash Bros. for the Nintendo 64:

In Super Smash Bros. Melee[edit]

Unlike in Smash 64, there are multiple moves that can OHKO in Melee, including playable characters' attacks and stage hazards. They still remain relatively rare, however.

Playable characters' moves[edit]

Contrary to common belief, Roy's Blazer is not an OHKO, having very high fixed knockback but not quite enough to qualify under the required conditions. However, in particular situations, it could potentially KO very light characters at 0% in small stages if only the first hit connects, specifically characters not heavier than Jigglypuff.

Contrary to common belief, Mr. Game & Watch's Judge #9 is not an OHKO, having very high knockback but not quite enough to qualify under the required conditions.

Items/Enemies[edit]

Marill's Tackle can push players past the side blast line, but as it inflicts no conventional knockback, it is not considered a one-hit KO.

Stage hazards[edit]

  • Rapid laser shots from the Great Fox on Corneria, as well as the turrets while the Great Fox is charging.
  • On Flat Zone, if a falling tool is launched at enough speed (after either being hit by an extremely powerful attack such as a Home-Run Bat swing, or being launched after receiving enough damage), it will OHKO anyone it slams into.
  • Banzai Bill's explosion on Princess Peach's Castle (if all hits connect).

While touching a blue Klaptrap on Jungle Japes causes a powerful meteor smash of OHKO power, it is otherwise unable to cause a conventional OHKO by the standards mentioned above.

Bosses[edit]

The following will usually cause an OHKO on Very Hard difficulty only:

  • Master Hand's Flying Punch
  • Master Hand's Reverse Throw
  • Master Hand's Jet Stream
  • Master Hand's Flying Slap
  • Master Hand's Finger Drill when preparing to launch
  • Crazy Hand's Fake-Out Slap and Flying Slap.
  • Master Hand and Crazy Hand's Crush (if all hitboxes land), Power Punch, Flying Punch (sweetspot), and Jetstream (sweetspot).
  • Combined Master Hand's and Crazy Hand's Applause (if all hits connect) and Sandwich Punch.

Others[edit]

In Cruel Melee, almost all the attacks of the Fighting Wire Frames are powered so much that they can easily OHKO every character. These moves include, for example, forward smash and up smash, but also punches, kicks, and other moves.

Video[edit]

The following video demonstrates nearly all the moves and hazards that KO at 0% in Melee:

In Super Smash Bros. Brawl[edit]

Brawl continued the trend of adding several OHKOs into the game, resulting in a huge number of them (especially in The Subspace Emissary). However, the majority are boss attacks, with relatively few being standard moves of playable characters. On the higher difficulties of The Subspace Emissary, several boss attacks become invariable OHKOs.

Some notes:

  • In The Subspace Emissary, the player's gravity and falling speed are automatically increased up to 19% from normal Brawls, making KOs less likely.
    • It is also possible to use very strong flinch or launch resistance stickers to severely reduce knockback, although they are unlikely to protect from very powerful moves of OHKO power. This becomes more evident on the higher difficulties.
  • In Boss Battles, boss attacks are normally weaker, having slightly more than one half of their original speed and power (with some notable exceptions). This is done to partially compensate the fact that the player has only one stock and no continues, items or stickers. As such, almost none of the boss attacks which OHKO in Emissary will do so in Boss Battles, except for Tabuu' Off-Waves on intense.

Playable characters' standard moves[edit]

Final Smashes[edit]

  • Marth's Critical Hit.
  • Lucario's Aura Storm at high Aura if most hits connect.
    • If the initial take off lands, the attack OHKOs Mario when Lucario has only taken 95% damage (roughly a 55% Aura). Considering only the beam's power, it is an OHKO starting from 125% damage for Lucario (roughly a 73% Aura).
  • Pokémon Trainer's Triple Finish if most hits connect (always needs the last hit to land for a KO).
  • Ganondorf's Beast Ganon if most hitboxes land (at least one stomp and charge). If a character paralyzed by Beast Ganon is not hit by the charge afterward, they will be inflicted a meteor smash of OHKO power.
  • Zelda's Light Arrow (first opponent only).
  • Samus' Zero Laser if all hits connect.
  • Olimar's End of Day if all hitboxes land (bury, ascent, and explosion). Offstage opponents hit by the rocket's thrusters will also experience an OHKO via meteor smash.
  • Captain Falcon's Blue Falcon.
  • Wario-Man's Wario Waft fully charged.

While close, Luigi's Super Jump Punch during Negative Zone is not considered a true one-hit KO under the general definition. Since characters will have taken damage during the Final Smash, it doesn't qualify as a one-hit KO. Even if the damage taken is removed, it doesn't start KOing Mario until 5%; Bowser is KOd around 7%, making it a very powerful tactic. In fact, while Negative Zone is active, characters' weight could be severely reduced, making KOs much more likely.

Items[edit]

  • The Dragoon.
  • A smash attack with the Home-Run Bat.
  • Touching Moltres's wings while is ascends.
  • Suicune's Aurora Beam.
  • Deoxys's Hyper Beam.
  • Electrode's Explosion when smash thrown. If an Electrode fails to burst, it can still be picked up and smash thrown with guaranteed OHKO power.
  • If Wario runs over a buried Pitfall while riding on his Wario Bike, he will be sent flying at OHKO power. A thrown Pitfall can also meteor smash midair opponents with OHKO power.
  • When a Hothead reaches its full power for the last seconds before fading, or after taking enough damage, any contact will be an OHKO (touching the sparks is even more powerful).
    • If an uncharged Hothead is hit by an electric or flame-based hitbox that deals at least 30% damage (such as Ike's stage 6-9 Eruption), it will OHKO when smash thrown or launched. Any contact while traversing the stage at this strength (or with the sparks it emits) will also OHKO.
  • If a Soccer Ball is launched at enough speed (after either being hit by an extremely powerful attack such as forward smash or a Home Run bat swing, or simply being launched after receiving enough damage), it will OHKO anyone it slams into.

Stage hazards[edit]

  • The Ultimate Chimera's bite on New Pork City.
    • If the the bite lands on the mouth's edge, it deals the same immense knockback of Marth's Critical Hit. If the bite traps the character inside the mouth (or the Ultimate Chimera turns around to inflict a reverse bite), both knockback and damage are even higher, rivalling Tabuu's Off Waves on the higher difficulties.
  • Corneria's laser beams.
  • Touching the hull of the Pirate Ship.
  • The first and fourth spikes on Rumble Falls (can easily be teched).

While touching a Klaptrap on Jungle Japes causes a powerful meteor smash of OHKO power, it is otherwise unable to cause a conventional OHKO by the standards mentioned above.

The Subspace Emissary bosses[edit]

Note: these moves will not OHKO in Boss Battles unless stated otherwise.

Rayquaza
  • Iron Tail - Intense difficulty, low HP, tip. Can be teched.
Galleom
  • Fall forward - sweetspot can OHKO on Very hard and Intense. Sourspot can OHKO on Intense.
  • Vacuum spin - All hits connect, Intense.
  • Giant leap - landing directly on opponent on intense difficulty at low HP.
  • Giant punch - sweetspot, intense with low HP.
  • Tank drop - intense difficulty at low HP against grounded opponents. Heavyweights can survive at 0%.
Meta Ridley
  • Mega Fire Ball - Intense difficulty, low HP.
  • Falcon Flyer Pull - giant fireball at point-blank on Intense.
Tabuu
  • Off Waves - Normal difficulty or higher. Will also OHKO in Boss Battles, but only on Intense.
  • Tabuu Shot (large energy ball) - Very Hard difficulty or higher.
  • Movement Throw - Very Hard difficulty or higher.
  • Shadow Laser - Intense difficulty.
  • Blade Charge - Intense difficulty.
  • Tabuu Fire - Intense difficulty.

Being the final boss, Tabuu has the greatest number of OHKO moves, and is the only boss with a move that can OHKO on Normal difficulty, and the only boss that can OHKO in Boss Battles.

Others[edit]

  • In Cruel Brawl, almost all the attacks of the Fighting Alloy Team are powered so much that they can easily OHKO every character. These moves include, for example, forward smash and up smash, but also punches, kicks and a very high number of moves. Each of the Alloys has also more powerful specific attacks, such as kicks for the Blue Alloy or punches for the Red Alloy, which are both a guaranteed OHKO from the center of the stage even for Bowser. A similar type of strengthening (or slightly lower) was seen in Melee. Also, the Shadow Clones, Subspace Copies and opponents battled in The Subspace Emissary are powered up this way on the higher difficulties only.

Video[edit]

The following video demonstrates some moves and hazards that KO at 0% in Brawl:

This video shows some other OHKOs, including more boss attacks.

In Super Smash Bros. 4[edit]

Like Brawl, SSB4 continues to add OHKOs to the game, though mostly playable characters' moves. Also, Bayonetta's Infernal Climax becomes the first playable character's move capable of an Instant KO.

Playable characters' standard moves[edit]

Contrary to its name and intention, Little Mac's KO Uppercut does not KO until above about 30% damage. At 0%, it falls short of the necessary amount of knockback, KOing a character as light as Jigglypuff at 12%. Also, Ganondorf's reverse aerial Warlock Punch is the most powerful non-OHKO attack, KOing Mario from the center of Final Destination as low as 1% on its sweetspot, though it can easily KO all lighter characters at 0% when sweetspotted. With rage, it eventually gains OHKO power.

Playable characters' moves (with rage applied)[edit]

While the following moves do not guarantee OHKO power under normal circumstances, with rage, they can perform an OHKO:

Final Smashes[edit]

Items[edit]

  • The Dragoon.
  • A smash attack with the Home-Run Bat.
  • Electrode's Explosion after being smash thrown.
  • If a Hothead is powered up significantly by a flame-based hitbox (30% total or higher), it will gain OHKO power when smash thrown or emitting sparks.
    • Equipment can increase the player's damage, increasing the amount of damage a Hothead can be charged by and thus making it easier to reach OHKO power.
  • The Black Knight item from Smash Tour will cause smash attacks to have a 30% chance to have 5 times knockback, occasionally turning them into OHKOs.

Beetle, Boss Galaga, Kyogre's Hydro Pump and Oshawott's Surf can push the players past the blast lines, but as they inflict no conventional knockback, they are not considered one-hit KOs. The first two can also be easily escaped by button mashing at low percents.

Stage hazards[edit]

While touching a Klaptrap on Jungle Japes causes a powerful meteor smash of OHKO power, it is otherwise unable to cause a conventional OHKO by the standards mentioned above.

Other[edit]

While it isn't accessible in regular battles, the bomb used in the Target Blast stage apparently has more than enough power to OHKO under normal conditions.

Bosses[edit]

The following will usually cause an OHKO on 8.0 or higher difficulties:

  • These Master Core's attacks:
    • Blast Waves (only used if the player does not defeat it in time: about 45 seconds). Ironically, the chances to survive are higher if the player is closer to the blast lines.
  • The final explosion after unleashing the last Blast Wave (very small hitbox). However, it can never truly defeat the players as they have already won by the time the hitboxes land.

Video[edit]

The following video demonstrates all the moves and attacks that KO at 0% in Smash 4:

In Super Smash Bros. Ultimate[edit]

Like SSB4, Ultimate continues to add OHKOs to the game, though still focusing on playable characters' moves (while Final Smashes and items have been slightly nerfed again from the previous game). Several characters also gain the ability to instant KO through Final Smashes or special moves; these do not count as OHKOs and belong in its respective page.

Playable characters' moves[edit]

Playable characters' moves (with rage applied)[edit]

Final Smashes[edit]

Final Smashes executed using Final Smash Meter always lose their OHKO power, with Critical Hit KOing Mario at 20%.

Items[edit]

  • The Dragoon.
  • A smash attack with the Home-Run Bat.
  • Electrode's Explosion when smash thrown.
  • A Hothead when brought from no charge to significant overcharge by a single fire attack that deals over 30% damage. Hothead's damage output depends on the average damage output of the moves used to bring it to full charge, and thus gains OHKO power when overcharged by an extremely powerful fire move. If the Hothead hits opponents while sparking, it can OHKO without being overcharged as much, but not when starting from zero charge.
    • For example, a fresh fully charged Flare Blade will sufficiently overcharge a Hothead, but doing so in Training with stale moves disabled removes its ability to sufficiently charge it, as the additional 1.05x freshness bonus just barely grants Flare Blade enough damage to do so.
    • Spirits can increase the player's damage, increasing the amount of damage a Hothead can be charged by and thus making it easier to reach OHKO power.
  • The Deku Nut's explosion on a grounded target that cannot be stunned, such as Sandbag, or Kirby in his Stone transformation.

Beetle, Boss Galaga, Arcade Bunny, Isaac, Kyogre's Hydro Pump, and Oshawott's Surf can carry players into the side blast line, but as they inflict no conventional knockback, they are not considered one-hit KOs. The first three can also be easily escaped by button mashing at low percents.

Stage hazards[edit]

While being hit by a Klaptrap on Jungle Japes causes a powerful meteor smash of OHKO power, it is otherwise unable to cause a conventional OHKO by the standards mentioned above.

Bosses[edit]

The following will usually cause an OHKO on Hard difficulty only:

  • Galeem's Lens Flare with weaker or no spirits (sweetspot, if most hits chain; not guaranteed).

Other[edit]

While inaccessible in a regular fashion without hacking, the gun found on the Free the Spirit screen's stage is programmed in as its own usable item, inflicting 30% damage with OHKO power (mainly because the Free the Spirit stage is very small with close blast zones).[1] This situation is similar to Smash 4's Target Blast bomb.

Video[edit]

The following video demonstrates all the moves and hazards in Ultimate that inflict enough knockback to KO at 0%, alongside some powerful moves that don't. However, it also includes a few moves and hazards that do not inflict any knockback, such as Instant KOs:

Conclusive video[edit]

The following video demonstrates several one-hit KOs from every Smash game except Ultimate:

Trivia[edit]

  • Brawl features the most guaranteed OHKOs; however, the vast majority are from bosses.
  • The Home-Run Bat is the only item (and by extension, the only attack) able to perform a guaranteed OHKO in every Smash game, at least on its sweetspot.
  • Roy's Flare Blade and Counter are the only moves to maintain their OHKO power in every installment.
  • At least one playable character from the Fire Emblem universe possesses a move with OHKO potential in every game. Other main characters appear as items with OHKO power (Black Knight in Smash 4).
  • Marth's Critical Hit is the only Final Smash to maintain its OHKO power in every installment. Throughout all games, it is also the most powerful attack of any character's standard moveset (in terms of knockback) without any exterior factors or buffs, being impossible to survive if in direct sight of a blast line, even on the largest stages of each game.
  • While the majority of OHKOs will fail to work on characters under the effects of a Super Mushroom or Metal Box, a few attacks have such high knockback that they will still OHKO under these circumstances. In Brawl, this includes Suicune's Aurora Beam, Marth's Critical Hit, the Ultimate Chimera's bite, and several boss attacks.
    • These attacks in Brawl have such immense knockback that it is possible for the main victim(s) to OHKO other opponents by simply knocking into them.
    • Starting from Smash 4, a few Final Smashes have hitboxes that negate the effects of such buffs, such as Marth's Critical Hit.
  • Tabuu on Intense difficulty in The Subspace Emissary has more OHKOs than any other boss or enemy in all the Smash games, with 14. His OHKOs are reduced to 12 on Intense difficulty in Boss Battles.
    • Considering Tabuu has only 16 attacks, 88% of his moves are potential one-hit KO moves.
    • Tabuu has only one non-OHKO attack on Intense difficulty: Eye Lasers, which KOs well below 50%. Normal Teleport cannot harm the player in any way.
  • Apart from Tabuu, other bosses that have a notable amount of OHKO moves (in Brawl only) include Duon (with 9), Galleom and Rayquaza (with 8 each), and both Master Hand and Crazy Hand (with 7 each plus 3 combined). All the other bosses in Brawl have 6 or fewer OHKOs.
    • Combined Master Hand and Crazy Hand have access to 17 potential OHKO moves on Intense difficulty in Brawl, although some of them need multiple hits to connect to KO at 0%. This also results in their combined attacks occasionally being two OHKO moves.
    • 86% of Porky Minch's moves (6 out of 7) and 80% of Rayquaza's (8 out of 10) are potential one-hit KO moves. However, Rayquaza's OHKOs are nearly always situational.
    • Every main boss in Brawl (10 total) is capable of OHKOs under certain conditions, at least on Intense difficulty in The Subspace Emissary or Classic Mode. In Boss Battles, however, only 7 maintain this power.
  • The most powerful moves in the Smash series are Tabuu's Off Waves (waves and contact with his body) on Intense difficulty in The Subspace Emissary and Boss Battles, and the Ultimate Chimera's bite in Brawl. Both these attacks are the most damaging moves, dealing 100%-200% damage and having immense knockback.
  • Master Core's final explosion on 8.0 difficulty or above is the only OHKO that will never KO the player, since the battle is already won before the hitboxes land.
    • Duon's Vacuum Spin, some of Porky Minch's attacks, contact with Porky Bots, Galleom's Tank Rush and Tank Rush & Slam can hit the player after the boss is defeated (with OHKO power on the higher difficulties), but since the battle is already won, the player can never be KOed.

References[edit]