For the male teen-stage character of the same name who debuted on the Tamagotchi P's, see Cosmotchi.Tamagotchi Video Adventures VHS. He was created by Bandai America and has not been used in any Japanese material.
He is a professor and chief curator of the Tamagotchi Museum. He is also the only Tamagotchi to speak English consistently throughout the cartoon, thanks to a translator Mimitchi turned on at the beginning (breaking the fourth wall).
Cosmotchi is much larger than the other Tamagotchi characters. He has a black body with stick arms and legs, and white eyes. His mouth is almost never seen. He wears a purple and green garment with a large green swirl on the front, and a purple helmet with green tubes coming out of it.
Cosmotchi is very friendly and caring to the other Tamagotchis, and he often talks to them in a gentle and fatherly tone. However, he is somewhat afraid of the Great Gotchi and hates it when he yells. He is also a bit clumsy and forgetful. He is curious interested in Earth, and loves looking at the objects the Tamagotchis brought for the museum. He has a lot of heart and is touched by the kind spirit of humans.