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.
"OHKO" redirects here. For the smasher sometimes known as "OHKO", see Smasher:Okoru.
Roy’s Flare Blade is an example of a one-hit KO move.

A one-hit KO, commonly abbreviated as OHKO, 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 it inflicts enough knockback to KO Mario at 0% from the middle of Final Destination (Dream Land in Smash 64).

As a result, moves and situations like the following are not considered to be one-hit KOs:

Conversely, a one-hit KO move may fail to KO if the standard conditions are not met, such as the stage being large or having walls; the opponent being at the far end of a stage; the move being weakened due to stale-move negation; or the opponent using DI, momentum cancelling, crouch cancelling, or various other techniques to reduce the knockback or alter the trajectory of the attack.

In Super Smash Bros.[edit]

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

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]

Playable characters[edit]

While close, Mr. Game & Watch's Judge #9 is not quite strong enough to KO at 0%.

Items/Enemies[edit]

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).
  • Touching a blue Klaptrap on Jungle Japes.

1-P Mode[edit]

Video[edit]

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

In Super Smash Bros. Brawl[edit]

Despite The Subspace Emissary automatically increasing the player's gravity and falling speed by up to 19% from normal brawls (making OHKOs less likely), Brawl features the largest amount of OHKOs, with the vast majority being from bosses.

Playable characters' standard moves[edit]

Sheik’s Chain with the Chain Jacket glitch can also copy another hitbox, including a hitbox of OHKO power.

Final Smashes[edit]

While close, Luigi's Super Jump Punch during Negative Zone is not quite strong enough, only KOing Mario at 5% and Bowser around 7%. Negative Zone inflicts incremental damage and can easily break these thresholds, but this damage does not consist of "hits" due to inflicting no knockback.

Items[edit]

  • The Dragoon.
  • A smash attack with the Home-Run Bat.
  • Touching Moltres.
  • 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 OHKO power.
  • If Wario runs over a buried Pitfall while riding on his Wario Bike, he will be sent flying at OHKO power.
  • 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. Coming into contact while it is sparking 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 bite lands on the mouth's edge, it deals immense knockback, comparable to Marth's Critical Hit. If the bite traps the character inside the mouth (or the Ultimate Chimera turns around to inflict a reverse bite), the attack hits twice, dealing even more knockback.
  • Corneria's laser beams.
  • Touching the hull of the Pirate Ship.
  • The first and fourth spikes on Rumble Falls (can easily be teched).
  • Touching a Klaptrap on Jungle Japes.

Bosses[edit]

Due to Boss Battles mode weakening bosses (to compensate for the player's single stock and lack of continues, items, or stickers), all of the following apply only to Classic Mode or The Subspace Emissary, and cannot OHKO in Boss Battles mode on any difficulty with a single exception. Tabuu's Off Waves will still OHKO in Boss Battles on Intense difficulty.

  • Master Hand and Crazy Hand's Reverse Throw (Intense).
  • Rayquaza's Iron Tail (low HP, sweetspot/tip, Intense). Can be teched.
  • Galleom's Collapse (sweetspot, Very Hard).
  • Galleom's Collapse (sourspot), Double Lariat (all hits connect), Giant Jump (landing directly on opponent, low HP), Uppercut (sweetspot, low HP), and Rush & Slam (against grounded opponents, low HP) (all Intense).
  • Meta Ridley's Mega Fire Ball (low HP) and Falcon Flyer Pull (giant fireball at point-blank) (all Intense).
  • Tabuu's Off Waves (any difficulty at less than half HP, Normal at any HP).
  • Tabuu's Movement Throw (Hard), Tabuu Shot (Very Hard), Blade Charge (less than half HP, Very Hard), Shadow Laser (Intense), Discharge Attack (body, Intense), Tabuu Fire (Intense).

Other[edit]

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]

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%.

With Rage applied[edit]

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- or electric-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.

Stage hazards[edit]

Bosses[edit]

  • Master Core's final wave attack (on 8.0 or higher intensity only[citation needed]). Ironically, the chances to survive are higher if the player is closer to the blast lines.
  • Master Core's self-destruction after unleashing the last wave (very small hitbox). However, this knockback can never defeat the player as they have already won by the time the hitbox lands.

Other[edit]

While it isn't accessible in regular battles, the bomb used in the Target Blast stage has enough power to OHKO.

Video[edit]

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

In Super Smash Bros. Ultimate[edit]

Playable characters' moves[edit]

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 flame or electric attack that deals over 50% damage. If the Hothead hits while sparking, it can OHKO from attacks closer to 30%.
    • 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.

Stage hazards[edit]

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:

Gallery[edit]

Trivia[edit]

  • In Melee, Roy's trophy refers to Flare Blade as an "instant KO".
  • 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.
    • 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 any Smash game, with 7.
  • 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 always already won by the time the hitboxes land.
    • Galleom's Tank Rush and Tank Rush & Slam can also hit the player after the boss is defeated, with OHKO power on the higher difficulties.

References[edit]