Get ALL Tapes:
During gameplay in any level pause the game and hold the Left shoulder button and press C-Right, Left, Up, C-Up, C-Up, Right, Down, Up. The Pause menu text will shake as confirmation if the code has been entered correctly.

Unlock Moon Gravity:
During gameplay pause the game and hold the Left shoulder button and press C-up, Left, C-Down, C-Down, Up, Down, Right. The Pause menu text will shake as confirmation if the code has been entered correctly.