The Adventures of Cippi

The Adventures of Cippi is a series of internet cartoons.

Guffer Fish (E01)

While underwater, Cippi has a run-in with a pufferfish, who challenges Cippi to a duel. Cippi inflates himself until his is bigger than the pufferfish, before accidentally farting and freezing up the whole ocean. https://www.youtube.com/watch?v=51acGVs5QoQ