Invasion From Beyond Cheats - PlayStation
Primary Collection of Cheats
Level select
Press [L1], [R1], [L2], [R2], [Triangle],
[X], [Circle], [Square]x2, [Circle], [X],
[Triangle] at the "Press Start" screen. Return
to the "Start Mission" screen to select any level in
the game.
All ships",
"weapons", "and upgrades
Press [L1], [R1], [L2], [R2], [Up],
[Down], [Right], [Left]x2, [Right], [Down],
[Up] at the "Press Start" screen.