Big-O-Blaster

While B.O.B.(Big O Blaster) is technically not a character, it definitely plays a major role in Banjo-Tooie. B.O.B. is a massive laser cannon that sucks the life force out of beings and stores the force in a container. When enough is stored up, it can be used to give life back to the undead. Gruntilda was planning on using this machine to remake her body. She first used it to drain King Jingaling's life force, rendering him zombie-like in the process. Then, she decided to blast the whole island, not caring that it would take long enough for Banjo and Kazooie to reach her. After the Tower of Tragedy Quiz, Kazooie reversed the effects and restored Jingaling and Bottles, though the latter wasn't a victim of the laser. Unlike how Banjo-Kazooie ended, where Grunty would use the machine if the player saved and quit, B.O.B. is not used by her other than sucking out King Jingaling's life force. B.O.B.