Press Start to pause game play. Press C-Up, C-Down, C-Left, C-Right.
A cheat option will appear at the bottom of the menu.
Invincibility:
Enter the cheat menu and immediately press C-Left, C-Right, C-Down.
The sound of rushing air will confirm correct code entry.
Level select:
Enter the cheat menu and immediately press C-Left(2), C-Right(2),
C-Down, C-Top. The sound of rushing air will confirm correct code
entry.
Kill all visible enemies:
Enter the cheat menu and immediately press C-Down, C-Up, C-Left(2). The
sound of rushing air will confirm correct code entry.
Full health:
Enter the cheat menu and immediately press C-Left, C-Up, C-Down(2). The
sound of rushing air will confirm correct code entry.
Walk through walls:
Enter the cheat menu and immediately press C-Up(20), C-Down. The sound
of rushing air will confirm correct code entry.
All keys:
Enter the cheat menu and immediately press C-Down, C-Up, C-Left,
C-Right. The sound of rushing air will confirm correct code entry.
Enter the collect menu to activate the code.
All artifacts:
Enter the cheat menu and immediately press C-Up, C-Right, C-Down, C-Up.
The sound of rushing air will confirm correct code entry. Enter the
collect menu to activate the code.
All weapons:
Enter the cheat menu and immediately press C-Right, C-Up, C-Down(2).
The sound of rushing air will confirm correct code entry. Enter the
collect menu to activate the code.
All puzzle items:
Enter the cheat menu and immediately press C-Up, C-Left(3), C-Right,
C-Down(2). The sound of rushing air will confirm correct code entry.
Enter the collect menu to activate the code.
Hidden rooms:
Many of the levels in the game contain hidden rooms. To access them
easily, enable the "Walk through walls" code. Then, leave the main
rooms and look for rooms that are cut off from the main level.
Sites: