Debug mode
Press [Up], [Down], [Left], [Right],
[Down]x2, [Right]x2, [Square] when the Core Design
copyright screen appears in the NTSC version of the game. For
the PAL version of the game, press [Triangle] instead of
[Square]. A debug menu will appear with the following options:
- Play any level.
- Run a CD test.
- Play the game with maximum firepower.
- View the FMV sequences.
- View the credits.
- Start a sound test.
For an additional bonus, highlight the credits option in the debug
menu and press [Left]x8, [Triangle].
Invincibility
Start a game, then Press [Start] + [Select]
to quit. Press [Up]x3, [Down]x3, [Right]x2,
[Triangle] at the main title screen. The sound of a chime
will confirm correct code entry. During game play, the energy
bar will still go down, but will eventually rise again.