Zone of the Enders
At the title screen go to options.Press up,down,down,X,triangle,left,right,square.You should here an explosion.When you start a game all enimies will be replaced by giant floating disco balls and the screen will flash all different colors.Play through the entire game in disco mode to recieve a special surprise at the end.
Full Health and Ammo During Gameplay:
Press pause during battle, (shoulder buttons) press L1, L1, L2, L2, L1, R1, L1, R1, R2, R1
(Your level will go down once each time you do this.)
How To Get the "True" Ending:
Destroy ALL buildings and survivors during missions and SOS missions. Also, you must destroy the colony shaft completely during the fifth and final SOS mission in the game. Afterwards continue onward as normal. Tyrant will be your final boss. After defeating Tyrant, go to the MOUNTAIN.1 stage and you'll recieve the bad ending. Note: This can be done on any difficulty level.
Two secret characters in Versus mode:
To get the two hidden characters in versus mode, simply beat the game again on any difficulty level. Once you do it, go to versus mode and you will find the two new characters playable.
Unlock 2 secret levels in Versus Mode:
To open up two hidden levels in versus mode, simply beat the game again on any difficulty level. Once you beat the game again, go into versus mode and you will have the two new levels.
Unlock Versus Mode Without Beating Game:
At the title screen where it says ''PUSH START BUTTON'' press O, X, Right, Left, Right, Left, Down, Down, Up, Up