Gruntilda Winkybunion the WitchEditGruntilda Winkybunion is a witch that used to live in her lair that was shaped like her head in Spiral Mountain, where Banjo the Honey Bear, and Kazooie the Red-Crested Breegull lived. Her and Banjo never really had any problem with each other, until Grunty discovered that she was not the prettiest of all, Banjo's sister Tooty was. She decided that she had to take action, so she kidnapped Tooty and brought her back to her lair so she could make herself beautiful and make Tooty ugly. Banjo and Kazooie had to find golden jigsaw pieces called Jiggies in the various worlds found inside her lair to get to the top of the tower before Grunty could finish powering up her machine. It turns out that Banjo and Kazooie made it to the top before the machine was fully charged, where they had a battle. With the help of the Jinjos, Banjo and Kazooie defeated Grunty and she fell of the top of her tower. She hit the ground, making a Grunty-shaped hole, and a boulder that came from who knows where fell on top of the hole. Two years later, she is freed from the ground, but is rotting and decaying. With the help of her sisters, Mingella and Blobbelda, she plans to drain the life force of everything in Isle o Hags to bring herself back to full life. Banjo and Kazooie have to set off on a second adventure together to stop the evil witch, but they will need the help of Mumbo Jumbo, Humba Wumba, King Jingaling, Master Jiggywiggy, and Drill Sergeant Jam Jars the Mole, to get to her new lair.
- In the beta version of Banjo-Kazooie, Gruntilda the Witch was intended to be a giant, not a witch.