A lot of shoot-em-ups from the 90s had funny endings in anime-style cutscenes. Not all were funny-- some just dumb and many had bad Engrish-- but some were pretty funny.
I liked one from GUNBIRD 2, in which the son of Dracula makes a wish to get a nice head of hair (he's bald). It backfires when he gets a green 'fro! And he becomes a disco dancer!
Skip to about 13 minutes to see a whole bunch of mostly funny endings: