Superpower Wiki

The power to enhance the muscle mass of oneself or others. Sub-power of Muscle Manipulation. Opposite to Muscle Mass Weakening.

Also Called

  • Hypertrophy
  • Muscle Amplification/Augmentation/Enhancement/Expansion/Increase
  • Muscle Mass Amplification/Augmentation/Expansion/Increase
  • Myokinetic Amplification/Augmentation/Enhancement/Expansion/Increase
  • Pumping Up


The user can increase the muscle mass (all or only certain muscles) of oneself and others, enhancing any physical abilities pertaining to muscle, such as strength, speed, stamina, height and durability.




  • May be limited to increasing the muscle mass of only oneself or others.
  • Overuse, use without proper training, or use without the proper anatomical adaptations may strain the user's body (even potentially causing damage).
  • May rapidly drain the user's stamina and lead to fatal exhaustion, after prolonged use.
  • May unintentionally restrict physical movement and mobility.

Known Users


  • Komaba Ritoku (A Certain Magical Index); via Hard Taping
  • Gyanza Rujike (Black Cat)
  • Ayon (Bleach)
  • Mask De Masculine (Bleach)
  • Meninas McAllon (Bleach)
  • Ichibē Hyōsube (Bleach)
  • Michiru Kagemori (BNA: Brand New Animal)
  • Undine (Claymore)
  • Muten Rōshi (Dragon Ball Series)
  • Son Gohan (Dragon Ball Z)
  • Broly (Dragon Ball Z)
  • Saiyans (Dragon Ball Series); via Super Saiyan Third Grade
  • Garlic Jr. (Dragon Ball Z)
  • Cell (Dragon Ball Z)
  • Frieza (Dragon Ball Z)
  • Fused Zamasu (Dragon Ball Super)
  • Kale (Dragon Ball Super); via Legendary Super Saiyan
  • Broly (Dragon Ball Super); via Legendary Super Saiyan
  • Master Son (Gintama)
  • Naruzō Machio (How Heavy are Those Dumbbells You Lift?)
  • Monkey D. Luffy (One Piece); via Gear Fourth - Boundman
  • Pica (One Piece)
  • Roronoa Zoro (One Piece)
  • Urouge (One Piece)
  • Vergo (One Piece)
  • Lao G (One Piece)
  • Mangetsu Hozuki (Naruto)
  • Suigetsu Hozuki (Naruto)
  • Charlotte Katakuri (One Piece)
  • Gozu (Naruto)
  • Joy Fullbun (Fairy Tail)
  • Ichiya (Fairy Tail)
  • Hiroshi Shibata (Mob Psycho 100)
  • Wood (Mob Psycho 100)
  • Udo (Mob Psycho 100)
  • Toriko (Toriko)
  • Mansam (Toriko)
  • Shigematsu (Toriko)
  • Tommyrod (Toriko)
  • Knocking Master Jirou (Toriko)
  • Meteor Garlic consumers (Toriko)
  • Chin Chinchin (Toriko)
  • Skull (Reborn)
  • Edajima Heihachi (Sakigake Otokojuku)
  • Zeus (Shuumatsu no Valkyrie: Record of Ragnarok)
  • Mou Bu (Kingdom)
  • Shin (Kingdom)
  • Akira Kongou (Kongou Banchou)
  • Muscular (My Hero Academia)
  • All Might (My Hero Academia)
  • Wolfram (My Hero Academia)
  • High-End (My Hero Academia)
  • All For One (My Hero Academia)
  • Kenshiro (Fist of the North Star)
  • Shinichi Izumi (Parasyte); via Migi
  • Escanor (Seven Deadly Sins); via Day Mode
  • Younger Toguro (Yu Yu Hakusho)
  • Suzuki (Yu Yu Hakusho)
  • Kibano (Yu Yu Hakusho)
  • Zorcodrio (The Death Mage Who Doesn't Want a Fourth Time)
  • Muscles (Flint the Time Detective); only on others, not himself


  • Jake the Dog (Adventure Time)
  • Dr. Drakken (Kim Possible: A Stitch in Time); in alternate future
  • Vilgax (Ben 10); via Cyborg Enhancement
  • Ishiyama (Ben 10)
  • Fone Bone (Bone Comics)
  • Bane (DC Comics)
  • Jai West (DC Comics)
  • Martians (DC Comics)
  • Caitlin Fairchild (Image Comics)
  • Popeye (Popeye the Sailor); via spinach
  • Rick Sanchez (Rick and Morty)
  • Agony (Marvel Comics)
  • Kamala Khan/Ms. Marvel (Marvel Comics)
  • Gentle (Marvel Comics)
  • Agent X/Nijo (Marvel Comics)
  • Reed Richards/Mr. Fantastic (Marvel Comics)
  • Hulk (Marvel Comics)
  • Red Hulk (Marvel Comics); via Heat Empowerment
  • Jennifer Walters/She-Hulk (Marvel Comics)
  • Betty Ross/Red She-Hulk (Marvel Comics)
  • David Haller/Legion/Sally (Marvel Comics); persona of Legion
  • Captain America (Marvel Comics)
    • Steve Rogers
    • John Walker
  • Bruiser (Marvel Comics)
  • Luke Cage (Marvel Comics)
  • Wallop (Marvel Comics)
  • Metamorphia (Sonic the Comic)
  • Brick (The Incredibles)
  • Hazel Rainart (RWBY); via Dust Crystals
  • Amethyst (Steven Universe)
  • Garnet (Steven Universe)
  • Biki (OK K.O.! Let's Be Heroes)
  • Yongkang (Scissor Seven)
  • Nicole Watterson (The Amazing World of Gumball)
  • Cyrus "The Colossus" Rhodes (Transformers Animated)

Video Games

  • Chris Redfield (Resident Evil Series)
  • Alex Mercer (Prototype)
  • James Heller (Prototype)
  • Gaston King (The Immortal Knights)
  • Vayne Carudas Solidor (Final Fantasy XII); as Vayne Novus
  • Little Mac (Super Smash Bros)
  • Raiden (Metal Gear)
  • Fighting type Pokémon or using the move "Bulk Up" (Pokémon)
  • King Dedede (Kirby)

Live Movies/Television

  • Arlee Hicks (Generation X)
  • Lycans (Underworld)
  • Knox (Heroes)
  • Xander Bly (Power Rangers Mystic Force)
  • Sabrina (Sabrina the Teenage Witch)

Known Objects

  • Venom (DC Comics)
  • Power Perfume (Fairy Tail)
  • Ox Talisman (Jackie Chan Adventures); one off
  • Excite Wizard Ring (Kamen Rider Wizard)
  • Molecular muscle enhancer (Kim Possible)
  • Super-Soldier Serum (Marvel Comics)
  • Vibranium (Marvel Comics)
  • The Russian Muscle Enhancement Machine (Regular Show)
  • Dust Crystals (RWBY)
  • Baron Violent's belt (The Tick: The Animated Series)
  • Meteor Garlic (Toriko)
  • Bulky Bars (Totally Spies)
  • Mikado Arm (Xiaolin Showdown)