 He planned to commit suicide like his peers, but Kinnikuman was able to dissuade him, encouraging him to live on and get stronger.Upon the arrival of the 2nd Perfect Large Numbers corps, Nemesis attempts to execute Peek-a-Boo for his betrayal, and although Kinnikuman was able to interrupt the assault, Peek-a-Boo was still seriously injured.He later rescues Neptuneman off-screen, and encourages the frightened Kinnikuman to face Nemesis.