Cheat mode
Press [Start] to pause game play, then press [Up],
[Down], [Left], [Right], [X], [B], [Y],
[A]. Resume the game to have invincibility. Hold [A]
and press the D-Pad to activate free movement in the current
level. Press [Select] to skip the current level.
Weasel mode
Press [Start] to pause game play, then press [L],
[R], [L], [R], [A], [B], [A], [B],
[X], [Y], [X], [Y]. The "Level Select"
option will now be unlocked at the options menu.