Bumbling bear Banjo and his chipper companion Kazooie's first handheld adventure has the dynamic duo once again on a mission to stop vile witch Gruntilda. Set between the events depicted in Nintendo 64 games Banjo-Kazooie and its sequel, Banjo-Tooie, the story involves Gruntilda's ingenious plan to travel back in time to make sure the animal pair never defeats her -- by preventing them from ever meeting in the first place. Of course, Banjo and Kazooie cannot in good faith let this happen, so they hitch a ride and begin a new adventure across a series of different lands.

Played primarily from an overhead, isometric perspective, Grunty's Revenge has Banjo and his bird friend Kazooie exploring forests, deserts, and more while confronting enemies and solving puzzles. Along the way, players will run across a younger, less wiser Mumbo Jumbo and a new character named Bozzeye. Players will be able to perform such moves as the Bill Drill, which has Kazooie pecking at high speeds, or the Wonder Wing, which helps protect Banjo for a short time. Kazooie's egg-tossing ability will also come in handy when confronting boss characters.