The power to transform oneself into a sphere-like form. Variation of Geometric Physiology.

Also Called

  • Ball Form
  • Rolling Attack
  • Rollout
  • Sphere Mimicry
  • Spherical Conversion


The user can convert themselves into a ball for attack, defense, and/or mobility. The user's skeletal structure is often highly flexible to allow them to do so with ease.




Known Users

  • Dillon (Dillon's Rolling Western)
  • Bouncing Boy (DC Comics)
  • Stitch (Lilo and Stitch)
  • Mario (Super Mario Galaxy 2); via a Rock Mushroom
  • Luigi (Super Mario Galaxy 2); via a Rock Mushroom
  • Several characters (Sonic the Hedgehog)
    • Sonic the Hedgehog
    • Shadow the Hedgehog
    • Silver the Hedgehog
    • Metal Sonic
    • Miles "Tails" Prower
    • Knuckles the Echidna
    • Amy Rose
    • Cream the Rabbit
    • Vector the Crocodile
  • Scourge the Hedgehog (Archie's Sonic the Hedgehog)
  • Bash (Skylanders: Spyro's Adventure)
  • Wrecking Ball (Skylanders: Spyro's Adventure)
  • Gorons (The Legend of Zelda)
  • Samus Aran (Metroid); via Morph Ball ability
  • Yoshi (Super Mario)
  • Kirby (Kirby's Dream Land)
  • The Bakugans (Bakugan)
  • Pokémon that can use "Rollout", "Defense Curl", or related moves (Pokémon)
  • Majin Buu (Dragon Ball Z)
  • Baby (Dragon Ball GT)
  • Arburian Pelarotas Ben 10/Ben 10: Alien Force/Ben 10: Ultimate Alien/Ben 10: Omniverse)
    • Cannonbolt
    • Ultimate Cannonbolt
    • Sentient Ultimate Cannonbolt
    • Rollaway
  • Ouroboros (Mythology)
  • Chōji Akimichi (Naruto); via Human Bullet Tank
  • Akimichi Clan (Naruto)
  • Isobu (Naruto)
  • Tony Tony Chopper (One Piece); via Guard Point
  • Carmen Dillo (Static Shock)
  • Major Ruin (Kameo: Elements of Power)
  • Killer (Super Smash Stadium)
  • Mecha Sonic (Super Mario Bros. Z)
  • Dark Samus (Metroid)
  • Batterball (Flint the Time Detective)
  • Kano (Mortal Kombat)
  • Alex Mercer (Prototype)
  • Blanka (Street Fighter)
  • Terrador (The Legend of Spyro)
  • Raz (Psychonauts)
  • Anguirus (Godzilla)
  • Thudball (Hook)
  • Catastrophic Quaken (How to Train your Dragon)
  • Amethyst (Steven Universe)
  • Scorp (Skylanders)
  • Snow Rollers (Skylanders)
  • Jasper (Steven Universe)
  • SpongeBob SquarePants (SpongeBob SquarePants)
  • Sly Cooper (Sly Cooper Series); via Thevious Raccoonus Technique
  • A-Bomb (Hulk and the Agents of S.M.A.S.H.)
  • Dwarven Sphere Centurions (The Elder Scrolls)
  • Bohrok (Bionicle)
  • Bohrok-Kal (Bionicle)
  • King Candy/Turbo (Wreck-it-Ralph)
  • Armored Armadillo (Mega Man X)
  • Omnidroid (The Incredibles)
  • Googler (Ace Lightning)
  • Various kaiju (Ultraman series)