Octopus Banjo

Octopus is the only transformation in Banjo-Kazooie: Grunty's Revenge that can go in the water in the worlds Spiller's Harbor and Freezing Furnace. It can go in water that's harmful to normal Banjo without being harmed. It isn't used a whole lot in the game, and has a simple attack to defend against Mines- he shoots small spurts of water.