|Voice actors||(Ja:) Kappei Yamaguchi, Takahiro Sakurai|
(En:) Dave Mallow, Doug Erholtz
Chuumon is an Animal Digimon. A rat-like Digimon that is always feeding Sukamon with unscrupulous thoughts. It has forged a strong friendship with Sukamon (that said, it might be only Chuumon that thinks this?), after a past incident where Chuumon was caught in a Carnivore system trap placed on the Network, and was saved by Sukamon who just happened to be passing by. While it is generally cowardly, its cunning is unparalleled and it will dash away to safety at the first sign of danger.
- Cheese Bomb (チーズ爆弾?): Throws a cheese-shaped bomb at enemies.
- Tell a Lie
- Whisper Voice (ガシガシ Gashigashi?, lit. "Boisterousness"): Tricks enemies to fall into network traps by speaking in a soothing voice.
Chuumon is a bipedal rat-like creature with pink fur, large ears, and black eyes. It has five digits on each hand and foot with black nails.
- Tyumon (チューモン)
Official romanization given by the Digimon Reference Book and used in the Japanese version of the series.
Name used in the English localization of the franchise.
- Ja: Chūchū (ちゅうちゅう?). Japanese onomatopeia for a mouse's squeak.
Digimon Adventure 02
When Digimon started to appear in the Real World, a Sukamon and Chuumon were seen in New York.
Digimon Data Squad
Some Chuumon were seen at Baromon's assembly at the Holy Capital.
Digimon Battle Spirit
Chuumon is not a playable character but appears when Sukamon throws him as an attack; coincidentally he also appears on Sukamon's selection picture.
A Chuumon was seen as a moving obstacle being controlled by an Etemon in the track Desert Oasis.
Digimon World DS
Chuumon is not a playable character, but it is found on any Sukamon.
Chuumon is unobtainable as a partner Digimon, but it is found on any Sukamon in the game.
Chuumon is the first boss of Root Grassland.