Use the blue and red button on the main menu screen. To disable a cheat code, reenter it a second time.

• Instant Text:

[‘red’,’blue’,’blue’,’red’,’red’,’red’,’blue’,’red’,’blue’,’blue’]

• Xray (women sprites are nude):

[‘blue’,’blue’,’blue’,’red’,’blue’,’blue’,’red’,’blue’,’blue’,’red’]

• Scanlines filter:

[‘blue’,’red’,’blue’,’red’,’blue’,’red’,’blue’,’red’,’blue’,’blue’]

• Lucky Dice (instant win gambling dice game):

[‘red’,’red’,’red’,’blue’,’blue’,’blue’,’red’,’red’,’red’,’blue’]