At your title screen enter on of the following codes:
Code: --- Result:
Hold Y, B, A, Down, Left and press X --- Beast Select - Opens a menu where you can choose which beast you transform too on any level
Hold Y and press X --- Continue - Starts you off at the beginning of the last stage you played. Also must be used when changing the starting level with the Options code.
Hold B and press X --- Options - A menu where you can change the starting level (see continue code), difficulty, health, and amount of lives.
Hold Y, A, Up, Right and press X --- Sound Test - Listen to the Music and SFX of the game.