Kajaku is a birdlike woman who is constantly seen smoking a pipe. She has brown hair done up in a bun, prominent red lips, yellow bird legs, and a white tail resembling that of a peacock. She wears a purple blouse with a white collar.
Kajaku is the second opponent faced in the Practice Mode of Bust-A-Move 2. Before the match, she blows smoke in Bub's face, which causes him to jump back and tear up slightly. In the console version of Bust-A-Move 2, she is a secret playable character in the game's Puzzle Mode.
- Kajaku's name originates from the Japanese word for peacock, kujaku (孔雀?).