Piranha water

Piranhas are enemies featured in Bubblegloop Swamp from Banjo-Kazooie and Bad Magic Bayou from Banjo-Kazooie: Grunty's Revenge. In both games, the piranhas bite Banjo if he goes in the swamp, and are usually unseen.

In Banjo-Kazooie, Banjo can avoid injury from them if Kazooie wears Wading Boots or uses her Wonderwing ability. Banjo can also avoid them by using his Crocodile transformation.