checked-no =>All Powerups: Pause the game and press U U D D [L] [R] [L] [R] [START]. =>Suicide Code: Pause the game and press U U D D L R L R B A [START]. =>Erase All Data: On the Options Screen, highlight EXIT, hold [L]+[R]+B and press [START]. =>Challenges: Beat the game once and Challenge A will appear on the main menu. Beat Challenge A and Challenge B will appear. =>Classic Music: Start a new mission on Stage 1. In the first stage there will be two strips of horizontal rocks, one longer than the other. Fly between the two rocks to get a 5000 point bonus. Beat the game and when you return to Stage 1 during the next loop of the game, the background music will be from the NES version of Gradius.