Super Metroid

Energy refill:
Note: This code requires the default controller setting to be selected. Collect a minimum of ten missiles, ten super missiles, and eleven power bombs. Perform the following actions when the life meter has less than fifty points and the reserve energy tanks are empty. Roll into a ball and press Select(3). Hold X (a power bomb will be released), then hold L + R + Down. With all buttons held, the screen will turn white when the power bomb explodes. The energy tanks will be now be refilled.