Demolition John

Demolition John (破壊屋ジョン, Hakai-ya Jon; Viz: Destroyer John) is a prisoner of the Smelly Lid Prison.

Appearance
Demolition John is a muscular man with a thick moustache and goatee. His head is bald with only three stripes of hair going down. While in prison, he wears the standard striped prisoner uniform.

Super Fight Arc
When Nyan breaks into Smelly Lid Prison searching for Puri-Puri Prisoner, Demolition John and the other prisoners question the monsters motives.

Prison
Demolition John greets Speed-o'-Sound Sonic by trying to make sure Sonic knows his place. Sonic disregarded him completely, prompting him to punch Sonic in the face. While gleefully stating that he never holds back, he noticed he punched a lead ball instead, breaking his hand in the process.

Abilities and Powers
Demolition John is the strongest in the prison, he is also the boss of the muscle group in the jail.