"You can bleed us to the brink of death, crush every bone in our bodies, it only makes us more powerful!"
― Vegeta, Dragon Ball Z

The ability to develop adaptations, powers, or skills in response to immediate threats.

Also Called

  • Instant Adaptation
  • Instant Evolution
  • Nemesis
  • Reactive Evolution
  • Spontaneous Adaptation
  • Self-Modification


Users can either instantly develop powers or abilities to deal with threats or their bodies dynamically learn from experience. Depending on the user's control of the power or genetic structure, the reactive effects can be permanent or temporary.

For example, after a certain situation, the user's skin may become tougher. They may display increased IQ after a difficult test or fortified emotions after a personal argument. The user may be able to read different languages after moments of looking them up or be able to withstand a constant bombardment of radiation. Some users may develop Enhanced Speed after being shot, or grow Dermal Armor, or gain the opposite power of their opponent.

In some instances, a magical object may express similar powers.






  • Adaptations may only be temporary.
  • Users may or may not be able to control adaptations.
  • New adaptations may grow naturally or be produced as a monstrosity.
  • Usually dependent upon a direct threat to the person, resulting in responsive action.
  • Learning some adaptations may negate other adaptations (e.g. learning to breathe water may prevent breathing air).
  • Some adaptations may be in conjunction with weaknesses.
  • Some threats are impossible to adapt to.
  • Some reactions may have a delayed response.
  • Certain hidden threats may not be reacted to.

Known Users


  • Shane Gooseman (The Adventures of the Galaxy Rangers)
  • Nanomech (Ben 10)
  • Shirley (The Jimmy Timmy Power Hour 3)
  • Amazo (Justice League Unlimited/DC Animated Universe/DCAU)
  • Footbots (Teenage Mutant Ninja Turtles 2012)
  • Rimuru Tempest (That Time I Got Reincarnated as a Slime)


  • E.V.E. (Archie's Sonic the Hedgehog)
  • Martians (DC Comics)
  • Amazo (DC Comics)
  • Doomsday (DC Comics)
  • OMACs (DC Comics)
  • Allen the Alien (Invincible/Image Comics)
  • Protege (Marvel Comics)
  • Darwin (Marvel Comics)
  • Super-Adaptoid (Marvel Comics)
  • Hulk (Marvel Comics)
  • Ultimate Wolverine (Marvel Comics)
  • Endgame (Marvel Comics); persona of Legion
  • Lifeguard (Marvel Comics)


  • Cyborg (DC Extended Universe)
  • Meta-Coolers (Dragon Ball Z: The Return of Cooler)
  • Gamera (Gamera)
  • Godzilla (Shin Godzilla)
  • Omnidroids (The Incredibles)
  • Iron Giant (The Iron Giant)


  • Titan (Corpies)
  • Crawler (Worm)

Live Television

  • Valeria (Ángel o Demonio)
  • Zaragas (Ultraman series)


  • The Tyrant (Akame ga Kill)
  • Wielders of Incursio (Akame ga Kill)
  • Gozu (Area D)
  • Priscilla (Claymore)
  • Hit (Dragon Ball Super)
  • Goku (Dragon Ball Super)
  • Saiyans (Dragon Ball)
  • Sachiel (Evangelion)
  • Wall Eehto (Fairy Tail)
  • Kenshiro (Fist of the North Star)
  • ACT Stand Users (Jojo's Bizarre Adventure)
  • Requiem Stand Users (Jojo's Bizarre Adventure)
  • Kars (Jojo's Bizarre Adventure part II: Battle Tendency)
  • Anubis (JoJo's Bizarre Adventure part III: Stardust Crusaders)
  • Haru Glory (Rave Master); via the Ten Commandments Sword
  • Gale Raregroove (Rave Master); via a copy of the Ten Commandments Sword
  • Lucia Raregroove (Rave Master); via a copy of the Ten Commandments Sword
  • Hideauze (Suisei no Gargantia)
  • Garou(One Punch Man)
  • Arcueid Brunestud (TYPE-MOON)

Video Games

  • J'avos (Resident Evil 6)
  • Emerl (Sonic the Hedgehog)
  • Metal Sonic (Sonic the Hedgehog)

Web Animation

  • Turbo Mecha Sonic (Super Mario Bros. Z)


Known Objects

  • Great Sacred Treasure (Kid Icarus: Uprising)


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