Zone of the Enders Cheats
All Lives and Ammo
Press start during the game and press L1, L1, L2, L2, L1, R1, L1, R1, R2, R1. Every time the code is entered you will lose a level.
Enter Circle, X, Right, Left, Right, Left, Down, Down, Up, Up at the title screen.
Two-Player Versus Mode
Complete ZOE once, and a two-player mode with five Frames and most levels will be unlocked. Finish the game a second time for the remaining two Frames.