Uncle Rico

 is Billy's Uncle. He makes his debut in Super Treadmill. When he finds Billy overweight and eating sweets, he tells him how he can win a prize if he sends in a picture of himself (Billy) thin.

He also tells Billy he can only do this if he practices everyday on a dangerous treadmill. Billy takes up the offer, and practices everyday on the treadmill.

Every time Rico is about to take a picture of Billy thin, cookies somehow get into the room and Billy becomes overweight again.

Signals
Uncle Rico will give signals about what the treadmill is going to do. The words he says in his speech bubble are represented by icons. Below are a list of the icons.

Two arrows pointing right (<<): The Treadmill will start to move left

Two Arrows pointing left (>>): The Treadmill will start to move right

Stick Man moving: The Treadmill will get faster

Trivia

 * Rico is said to be evil, but in the game he shows no signs of being evil, except for laughing when Billy fails his workout.
 * Uncle Rico was in a bet at the time of this game. He bet that he would be able to take a picture of Billy thin.