Sound test: Hold Up + A + B and reset the NES system. Restore energy: Pause game play and press Up(2), Down(2), Left, Right, Left, Right, B, A, Start. Note: This may only be done once per game.
Restore energy: Pause game play and press Up(2), Down(2), Left, Right, Left, Right, B, A, Start. Note: This may only be done once per game.