A Mumbo Token is a collectible item found throughout the worlds in Banjo-Kazooie. They resemble Mumbo's skull in a silver tint. Gruntilda stole these small, silver skulls from Mumbo Jumbo and scattered them throughout various worlds and in her lair. Banjo and Kazooie must collect them and return them to Mumbo Jumbo. In exchange, Mumbo will offer his services by transforming them into an object that matches the particular world's theme. A sign inside Mumbo's Skull will dictate how many tokens each transformation spell costs, and once a spell has been paid for (in increments of 5), the pair can use it as many times as they need. There are a total of 115 throughout the whole game, though only 75 are needed.