Piscatory Pete

Piscatory Pete is a small fish, similar to Blurps and Cheep Cheeps. He comes in two varieties, blue and orange. They appeared in Yoshi's Island in which the blue ones would simply swim in set paths to block Yoshi's path, while the orange ones would actively chase him. Yoshi could defeat them in Yoshi Submarine form, with a single torpedo.

They reappear in Yoshi's Island DS, although since the Submarine no longer shoots torpedoes, Yoshi simply has to avoid them.