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Super Mouse (超マウス, Chō Mausu) was a manga-only member of the Monster Association. He was a Demon-level monster who briefly appears to fight Garou along with Showerhead and Unihorn. He was killed by Overgrown Rover.[1]

Appearance Edit

Super Mouse is an anthropomorphic mouse with white fur and a very muscular body. He is taller than Garou and has a long ringed tail. His hands and feet similarly have ringed linings across them. Super Mouse also has featureless eyes with no irides and pupils, instead having a white sclera. 

Personality Edit

As expected of a monster, he is rather confident in his abilities and sadistic as well. However, he acknowledges the strength of higher Dragon-level mysterious beings and is willing to work alongside other monsters when fighting opponents.

History Edit

Prior to him joining the Monster Association, Super Mouse was a lab mouse who was constantly experimented on. As a result, his body became mutated and he gained increased strength, speed, stature, and limited regeneration. Sometime later, he would come to join the Monster Association and work together with Unihorn and Showerhead.[2]


Human Monster SagaEdit

Monster Association ArcEdit

Garou attacks Super Mouse

Garou blocks Super Mouse's punch

While Garou and Tareo were walking away from Overgrown Rover, Super Mouse appeared alongside Unihorn and Showerhead and attacked Garou. Super Mouse deemed Garou a warm up before the fight against the heroes. Showerhead and Unihorn attacked Garou with their respective techniques, but Gaoru easily dispatched both of them. Super Mouse threw a left jab at Garou, but the Hero Hunter blocked his punch using the Whirlwind Iron Cutting Fist, creating several wounds. The monsters, however, get back up, and express surprise at Garou's superb fighting strength as they have been all evaluated by Gyoro Gyoro to be demon level threats. 

Garou is scornful of such arbitrary labels and declares himself a Dragon-level monster. Super Mouse scoffs at the notion, stating only the upper echelon of the Monster Association were at that level of strength. The three monsters then prepare their special combo they developed called the Demon Trinity Bursting Speed Thrust. However, Garou already experienced a similar technique against Stinger, and is able to easily deflect the attack and Unihorn behind him. Unfortunately, the attack inadvertently hit Overgrown Rover. In anger, the monstrous dog fires an energy blast at everyone in the hallway. Showerhead attempts to stop the attack with his maximum water pressure, but he is vaporized alongside Unihorn. Super Mouse is confident that his regeneration can revive him, although the energy blast overwhelms him, and he meets the same fate as his comrades.

Abilities and Powers Edit

Being a Demon-level mysterious being, he is naturally a strong fighter and was able to take some blows from an evolving Garou. However, he is completely helpless against Dragon-level monsters like Overgrown Rover and was obliterated by just one of his energy blasts.

Physical AbilitiesEdit

Immense Strength: Super Mouse boasts impressive physical strength, and was able to shatter walls with complete ease.

Supermouse's regeneration

Super Mouse's regeneration

Immense Speed: Being a Demon-level monster, Super Mouse has a high level of speed and was able to relatively keep up with an evolving Garou.

Regeneration: Due to his time being experimented on as a lab mouse, he gained a limited degree of regeneration and was able to quickly regenerate from Garou's attacks. His regeneration has a limit, and this was seen when he was killed by Overgrown Rover's blast.

Fighting StyleEdit

Proficient Hand-to-Hand Combatant: Super Mouse fights mostly as a hand-to-hand combatant.

  • Combination attack: Triple Demon (三鬼ー体, Miki ̄-tai) Blasting Speed Thrust (爆速刺し, Bakusoku-zashi): The attack utilizes the powers of Unihorn, Showerhead, and Super Mouse. Super Mouse launches Unihorn forward as Showerhead continues to propel him with Jetstream. The attack is powerful enough to severely anger Overgrown Rover although Garou found it slow and compared it to Stinger's attack.[3]


  • Bomb would have beaten Super Mouse in one swift attack before it can even react.[4]


  1. One-Punch Man Manga; Chapter 91
  2. One-Punch Man Manga; Chapter 91, page 11
  3. One-Punch Man Manga; Chapter 91, page 21-23
  4. One-Punch Man Stream; 22/4/2018


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