Puyo Pop Fever cheats and cheat codes for XBox

In-game reset:
Hold A + B + X + Y and press Start during game play to return to the main menu.

Unlock Popoi:
Play in normal mode, and finish the WakuWaku course

Unlock Carbuncle:
Finish the HaraHara course maximum 4, or minimum 12 fevers without any continues
Or
Finish the game with your number of continues as a multiple of seven.

Unlock all characters:
Go to Single or Endless mode starting menu.
Push Up, Down, Y, X, Start buttons.