Game Description:Everybody's favorite bear-bird duo debuts on Game Boy Advance! Banjo the bear and Kazooie the bird must take on Gruntilda again in Banjo-Kazooie: Grunty's Revenge. Adventure through the Isle of Hags and six fantastical worlds filled with over 60 puzzles, trials and contests. Take out Grunty's minions with Banjo's special moves and attacks. Characters and friends will aid Banjo and Kazooie on their mission, such as Mumbo the Witch Doctor who will help Banjo shapeshift into a mouse, a tank and other creatures! Hang on for a handheld adventure that is sure to be unforgettable as Banjo-Kazooie journey back through time to stop the evil Grunty!