A Digimon resembling a mouse who is always filling Sukamon’s head with shady ideas. Chuumon has a solid friendship with Sukamon (although perhaps it’s only the former who sees things that way). This relationship started after an incident when Chuumon was caught in a Carnivore system trap on the network, only to be saved by Sukamon as it just happened to pass by. A fundamentally meek and timid thing, Chuumon is the best at what it does—being crafty—and takes off like a shot at the merest whiff of danger. It uses its special move Cheese Bomb to hurl a cheese-shaped explosive. Bad things happen if Chuumon eats one of these by accident, though.