200,000 Klokkies - Pause the game and select the "Audio" option at the menu. Then, press L(2), R(2), X, B, X. If you entered the code correctly, a message will appear.
Alternate ending - Collect all 100 Orbs and successfully complete the game to view an alternate ending.
Faster credits - While viewing the credits, hold R.
Fill Electric Bombs faster - While you are on the vines, hold B.
Full health - Pause the game and select the "Audio" option at the menu. Then, press R, L, R, L, X(2), B(2), R, B. If you entered the code correctly, a message will appear.
Infinite Electric Bombs - Pause the game and select the "Audio" option at the menu. Then, press R(2), L(2), X(2), B. If you entered the code correctly, a message will appear.