Guardian Heroes Cheats

Go to the Options menu from the main menu. While DIP Switch is highlighted, press and hold X, B, and Z. While holding these, enter the DIP Switch menu by pressing A. As soon as you press the A button, immediately hold Down on the D-pad. If the code is done correctly, you will now be able to turn on Debug at the bottom of the DIP Switch menu. With Debug turned on, these cheats are immediately applied:

Begin Story Mode with characters at level 200.
Select your beginning stage in Story Mode.
Have access to all 45 characters in Versus Mode.

You must activate the following codes by pausing the game and while holding X, Y, and Z, pressing the indicated buttons (simultaneously, if more than one button is noted):
Restore your life to full - Up.
Bring your life to zero - Down.
Skip ahead one level - R and Start.
Skip ahead two levels - R, A, and Start.
Skip ahead three levels - R, B, and Start.
Skip ahead four levels - R, C, and Start.
Go back one level - L, R, and Start.
Go back two levels - L, R, A, and Start.
Go back three levels - L, R, B, and Start.
Go back four levels - L, R, C, and Start.