CheatCodes.com: Cheats and Cheat Codes for Invasion From Beyond for PSX

Level Select
At the "Press Start" screen, press L1, R1, L2, R2, Triangle, X, Circle, Square (2), Circle, X, Triangle. Then, return to the "Start Mission" screen to select any level in the game.
Submitted by: Anonymous User Added: 27 Mar 2003	Report this Cheat as: An Unlockable \| Broken

All Ships, Weapons, And Upgrades
At the "Press Start" screen, press L1, R1, L2, R2, Up, Down, Right, Left(2), Right, Down, Up.
Submitted by: Anonymous User Added: 27 Mar 2003	Report this Cheat as: An Unlockable \| Broken

Invasion From Beyond for PSX Cheats and Cheat Codes