Enter cheat mode
Enter [Square], [Triangle], [Circle],
[X], [Circle], [Triangle] as a password. Ignore
the "Invalid Code" response. The following cheats may
now be activated.
View FMV sequences
Enter cheat mode. Enter [Square], [X], [Circle],
[Triangle], [Circle], [X] as a password. A FMV
player will appear.
Level select
Enter cheat mode. Enter [Circle], [Circle],
[Triangle], [X], [Square], [Square] as a password.
Ignore the "Invalid Code" response. Begin a new game
and press [Start] during game play. Press [Circle] to
select the "Resume" option. Any level in the game may
now be accessed.
Permanent shield
Enter cheat mode. Enter [Square], [Circle],
[Circle], [Square], [Triangle], [X] as a password.
Ignore the "Invalid Code" response. Begin a new game
with a shield that is always full. Note that you can still die
in other ways.
Invincibility
Enter cheat mode. Enter [Triangle], [X],
[Triangle], [Triangle], [Square], [Circle]
as a password. Ignore the "Invalid Code" response. Begin
a new game. Note that use of this option may disable sprite collision
and the Use command.
| Level | Area | Password |
| 1 | The Prison | [Square], [Circle], [Triangle], [X], [Circle], [Square] |
| 2 | Morph Base | [Triangle], [Circle], [X], [Circle], [Square], [X] |
| 3 | Mars Mining Facility | [X], [Circle], [X], [Circle], [Triangle], [X] |
| 4 | Venus Space Station | [X], [Square], [Triangle], [Circle], [Circle], [Triangle] |
| 5 | The Pyramid | [Square], [Square], [Triangle], [X], [X], [Triangle] |
| 6 | Landing Pad | [Triangle], [X], [X], [X], [X], [Circle] |
| 7 | Underground (flying) | [Circle], [Circle], [Triangle], [X], [Triangle], [X] |
| 8 | Morph Mothership | [Square], [Square], [X], [Triangle], [Square], [Square] |
| 9 | Earth Base: Command Room | [Triangle], [X], [X], [Triangle], [Circle], [Triangle] |
| 10 | Earth Base: Dormitory | [X], [Triangle], [Square], [Circle], [Triangle], [X] |
| 11 | Reactor Room | [Circle], [Square], [X], [X], [Square], [X] |
| 12 | The Master Brain | [Square], [Triangle], [X], [Square], [Circle], [X] |
| 13 | The Escape (flying) | [X], [X], [Circle], [Triangle], [Circle], [Triangle] |
Note: Level 13 only appears is Sarah is not saved.