Winkybunion Tower

The Top of the Tower is at the top of Gruntilda's Lair in Banjo-Kazooie, and is where the final battle occurs between Banjo and Kazooie against Gruntilda.

Battle
In the final battle, Gruntilda spends most of the fight riding her broomstick. During the first phase, she flies down fast and tries to impale Banjo and Kazooie with the teeth on her broom. However, her broom starts to slow down after a few passes (two the first and second time around, three the third time around, and four the fourth time around), leaving her vulnerable to the Rat-a-tat Rap. After every successful attack from the player, Gruntilda will attack with an easily dodge-able fireball.

After taking enough damage, she uses a homing spell. Kazooie can protect Banjo from this by using the Golden Feathers. After, she starts to hover in place and throw fireballs. In a rare moment, she displays some intelligence when doing this because if the player tries to run away from the fireballs before she fires, Gruntilda will throw them into the player's path. After throwing four fireballs, she will take a short pause (the pause shortens every time she moves from one part of the tower to the next), leaving her vulnerable to three Eggs.

After repeating this process four times, she uses another homing spell which once again will be destroyed if Kazooie uses a Golden Feather. Then, Gruntilda flies high into the air to avoid being shot at, but fortunately Bottles comes to the duo's aid and creates a Flight Pad for them to use. Banjo and Kazooie can hit Gruntilda at any time with the Beak Bomb but it's best to attack her when she's not moving (again, the time she's not moving will shorten every time she's hit). Try not to attack her from above, otherwise you risk falling off the tower to your doom. Every time she's hit, she'll throw fireballs at you (one after the first hit, two after the second, three after the third, and four after the fourth).

After taking another four hits, Gruntilda will create a force field around her that Banjo and Kazooie cannot break through. At this point the Jinjos realize the two of them are in need of their help and intervene by creating four statues around the area. After three eggs are shot into the statues, a Jinjo will fly into the air like a missile and break through Gruntilda's barrier. The witch, however, doesn't remain idle during this time and will continue to attack the pair with fireballs. Unfortunately, Banjo and Kazooie cannot take cover behind the Jinjo statues as Gruntilda's attacks fly through them.

After all four Jinjo missiles fire, Gruntilda's broomstick will break and she will fall to the edge of the tower. She is still standing, however, and her force field still renders her immune to any of Banjo and Kazooie's attacks. At this point a larger statue containing The Mighty Jinjonator appears. This statue has four holes that the player must shoot four eggs into each side. Like the smaller Jinjo statues, the statue provides no cover and Gruntilda's attacks will still pass through it. She is quite possibly at her most dangerous in this phase, partly because she will attack with several consecutive fireballs followed by a homing shot. After each homing shot she will take a short breather, allowing Banjo and Kazooie to shoot eggs into the holes. The battle ends once the Mighty Jinjonator is activated, and he will attack Gruntilda and knock her off the tower.

Trivia

 * Although Banjo-Tooie features a Fly Pad on Spiral Mountain, it is not possible to reach the top of the tower as an invisible ceiling blocks Kazooie from going too high. While the battle with Gruntilda takes place at the top of her tower canonically, the area where she is fought is not physically located in Spiral Mountain in the game.
 * The Top of the Tower is the only part of Gruntilda's lair that is still accessible in Banjo-Kazooie: Nuts & Bolts. However, the hole where Banjo and Kazooie pop up from is gone, and, even with Spiral Mountains slight change in size, it is much smaller than during their final battle in Banjo-Kazooie.
 * A variation of the final boss theme was originally part of an unused theme called "Boss" that also had a variation of Donkey Kong 64 Mine Cart challenge.
 * The Top of the Tower is not reaccessible once the final boss fight is over, as jumping into Dingpot will trigger the ending cutscene again or do nothing, depending on whether or not the player got all 100 jiggies.