Banjo-Kazooie: Grunty's Revenge is a video game where the player takes control of Banjo and Kazooie to stop Gruntilda from carrying out her master plan. The game consists of six worlds in which players must overcome various obstacles, puzzles, and enemies. Players can use Banjo's array of combat moves to defeat their foes or seek help from witch doctors who can transform Banjo into different creatures such as a mouse or tank.