A to Z Cheats

Death and Return of Superman

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

Full energy, life, and special powers
------------------------------------- 
Enable cheat mode and press A + B + X + Y during game play. 
You will also be invincible during the missions when you fly 

in the sky, shooting the robots.

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

Defeating the Bosses
--------------------
Use the following technique to defeat Doomsday and the other 
Bosses quickly. Use Superman's eye beams, hand blasts, or other 
special attacks. Time them to connect when the Boss is almost 
on Superman. If done correctly, Superman will be able to hit 
him until he falls. Then, repeat this process until the Boss 
has been defeated.