The Death And Return Of Superman
Contributed by - Richard

Cheat mode:
Play the 0B, 29, 2C, and 05 selections on the sound test screen. 

Full energy, life, and special attack:
Enable cheat mode and press A + B + X + Y during game play. 

Level skip:
Enable cheat mode, then hold A + B + X + Y and press Select during
game play.