Retro Game Cheats for Doom (3DO)
Effect: Saved game bug
When:
During the game
How:
The 3DO Memory Manager will lock up or reset when deleting the saved game file named "DOOM.PREFS". It will also be unable to display any files below this file. The file may be deleted by using the built-in memory managers of Syndicate or Wing Commander III.
Submitted By:
Effect: Walls on map
When:
During the game
How:
Press LS, RS(2), A, Left(2), Up, A, C at the auto-map screen during game play. Do not pause the game. A sound will confirm correct code entry. All walls will be displayed on the map.
Submitted By:
Effect: All Items on Map.
When:
Map Screen.
How:
Enter 'LEFT SHIFT, RIGHT SHIFT, RIGHT SHIFT, RIGHT, UP, B, B, LEFT, RIGHT SHIFT'.
Submitted By:
Unknown
Effect: Screen size
When:
During the game
How:
Press Up, Right, LS, Up, Right(2), RS, A, Left at the auto-map screen during game play. Do not pause the game. A sound will confirm correct code entry. The game may now be set to run in two additional larger screen sizes, including full screen.
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Effect: Invincibility
When:
During the game
How:
Press Up, Right, A, B, A, Down, A, LS(2) at the auto-map screen during game play. Do not pause the game. A sound will confirm correct code entry.
Submitted By:
Effect: Level select
When:
During the game
How:
Press LS, Up, C(2), RS, Down, A, Left(2) at the auto-map screen during game play. Do not pause the game. A sound will confirm correct code entry. Restart the game for access to any level.
Submitted By:
Effect: God Mode.
When:
Map Screen.
How:
Enter 'UP, RIGHT, A, B, A, DOWN, A, LEFT SHIFT, LEFT SHIFT'.
Submitted By:
Unknown
Effect: All weapons and five hundred ammunition.
When:
Map Screen.
How:
Enter 'A, LEFT, A, B, A, RIGHT, A, C, A'.
Submitted By:
Unknown