checked-no =>Skip Intro Level: On the title screen, press [START]+R+Y. =>Invincibility: On the title screen, hold R+Y+[L]+A and press [START]. While playing the game, press [L] for invicibility and [R] for high jumps. =>Mini Ardy: On the title screen, highlight Game Start and press U X [START]. =>Black & White Ardy: Hold [L]+A while you die. =>Retro Ardy: Hold [L]+B as you die.