While playing, pause the game and hit Up, Down, Z, R, Left, Up, Down, Left, and then Down twice.

Pause the game and enter the following code to switch off gravity:

Z, R, Z, R, C-Down, R, R, C-Right, C-Right, R.

Having problems using your tractor beam to hang on to objects? No problem, IGN Codes is here to help. Simply pause the game and enter the following button combination:

C-Down, C-Left, C-Right, Z, C-Down, C-Right, C-Down, C-Down, C-Down, C-Right.

This will make your grappling beam more powerful.