Two years after Gruntilda's defeat at the hands of Banjo and Kazooie, two of her sisters, Mingella and Blobbelda, use a large digging machine entitled "HAG 1" to enter Spiral Mountain and set Gruntilda free, upon which they discover that she, while still alive, has rotted into a skeleton while underground. Seeking revenge, Gruntilda destroys Banjo's house with a destructive spell before fleeing with her sisters. Banjo, Kazooie, Mumbo Jumbo and Bottles are playing a game of poker in his house until this happens. Only the former three escape in time for the spell, as Bottles declines to believe in Gruntilda's return as insisted by his friends; he dies from his injuries the next morning. The three remaining friends resolve to defeat Gruntilda.