Help me find the game with this big metal fish enemy.

[Mockery]

I want to say it was an old Mega Man or Super Mario game, but I could be wrong. Anyway, there was an old game that had this big metal fish (looked like it was made of iron) that jumped out of the water while chomping its teeth) and I can't seem to remember what game it was in, nor can I find a picture of said finish.

Can any of you remember it?