Unlock All Levels
Enter = ! g M c 0 v ( 7 = as a password.

All powers
Pause game play, then press Right, Left, Up, Down, A, Up(2), Down(2), B, Right(2), Left(2), A. Information in this section was contributed by Martin Kiewitz.

Full energy
Pause game play, then press B, Right, A, Up, B, Left, A, Down, B, Right.

Level select
Enter CH5G4mS1jD as case-sensitive password to access the world map with all levels unlocked.

99 Lives
Pause the game, and then hitL A, Right, B, Up, A, Left, B, Down, A, Right, B, Up, A, Left, B