Hamill the Hamster is a unique NPC found at the eastmost end of Lood City.

Hamill has the appearance of a short, chubby, and fluffy hamster wearing a mineshaft black dress pants, a matching coat, a grey dress shirt, and a blumine necktie. Like the vast majority of the characters in the game he wears no shoes and has westside orange fur and black pupils.

When Joe approaches Hamill for the first time, he will beg him to retrieve his red key card located in his office at the top east wing of Hiroto Dojo. He says that he left it during the last weekend and needs it for work, but the Ninjas have been so busy with the Tournament that they have been dragging their feet to get it back to him. His exact relationship with the Hiroto Dojo Ninja team is unknown.

If Joe returns Hamill's Key Card, he will reward the player by unlocking the entrance to Lood City Park, and will allow Joe to have sex with him.

• Hamill is the first NPC to actually offer the player a questline that progresses the game.
• Pictures of Hamill can be found within his office in Hiroto Dojo.
• Hamill was actually designed very early into “Oh So Hero!”'s development; he was originally going to be an extremely wealthy brothel owner and professional power bottom. Early in development, Full Frontal Frog mentioned that backers on their Patreon could have their OCs inserted as NPC sex workers or patrons at the brothel (as one potential location). However, the idea for opening NPC slots was scrapped as the work would be too great and the brothel's appearance was pushed to a future act.