Kato Chan & Ken Chan is a gem of a PCE game made by Hudson. Often abbreviated as Kato-Ken in Japan, this game is derived from a Japanese TV program, Kato-chan Ken-chan gokigen TV. The main characters are Cha Kato (Kato-chan) and Ken Shimura (Ken-chan), who are famous Japanese comedians. One particularly distinguishing feature of the game is the ability to attack enemies with farts!
In this run, the author uses Ken-chan, though you will also see Kato-chan appear from time to time to be a nuisance to Ken-chan.