Pause the game and press LEFT, UP, X, SQUARE, UP, DOWN, SQUARE. The heart stone count will increase to 80, and it will not go below it.

Pause the game and press DOWN, CIRCLE, SQUARE, SQUARE, UP, X.

To get the Super Sword pause the game and press: Circle, Left, Down, Triangle, right, Circle, up, Triangle.

Press start to pause the game and press: UP, DOWN LEFT, SELECT, R1, L2, RIGHT, UP, LEFT, DOWN. Restart the game and on the options menu there should be an option for no enemies .

Start a game on Easy. Pause the game and press TRIANGLE, CIRCLE, CIRCLE, LEFT, CIRCLE, UP, DOWN. Restart the game and a Level Select entry will appear on the Options menu.