Tomichin was a character who was dropped during the development Marvel vs. Capcom: Clash of Super Heroes, intended as an assist character. He is the caricature of one of the game's designers, Atsushi Tomita, and bears a striking resemblance to Bert from Sesame Street. He seems to be clad in glasses, a brown coat, and blue pants. All that's known about him is that he would attack with his nose, which could elongate and form a fist from it to attack. Whether or not he was a character included to test the assist character system, or was included in the game graphics as a joke, is unknown.
Tomichin's appearance in a Secret File for the preceding game, Marvel Super Heroes vs. Street Fighter, which provided a simple move list of two special moves and one hyper combo, suggested that he was meant to be an playable character in that game, possibly in place of Norimaro.