Billy

 is the main character in Super Treadmill. He is a kid who is obsessed with eating cookies. When his Uncle Rico finds him overweight and eating cookies, he inspires Billy to get his fat down so he Rico can take a photo of Billy and send the photo off to a contest.

Appearance
Billy has brown hair, and wears a blue headband around his forehead. He wears a blue shirt, a dark blue belt, and brown shoes.

Trivia

 * Billy bears a striking resemblance to the Bearded Man man from Enemy 585. Both of them wear blue, have brown hair, and have the same coloured shoes. Coincidentally, Super Treadmill was released on the internet 10 days after Enemy 585 was. It is probably just a coincidence, but it is not known if Enemy 585 and Super Treadmill have any connection.