Bust-A-Move 4 Cheats

Another World In Arcade Mode:
At the original title screen, press Triangle, Left, Right, Left, Triangle. A small character will appear on the bottom left side of the screen. Now go into Puzzle mode & choose Arcade to access a new set of puzzles.

Bonus Characters:
To gain access to five new characters, beat Story mode in Player vs. Computer mode. Doing this gets you Madam Luna & Dreg. Now play Contest mode until you fight a new character. Beat them, & they are yours!