Duke Nukem 64:
1) CHEAT MENU
On the Title Screen, press Left, Left, L Button, L Button, Right, Right, Left, Left. You MUST activate the cheat menu BEFORE doing any of the cheats below! After a cheat is entered below, you can go to the cheat menu to turn them on or off.
2) LEVEL SKIP
On the Title screen, press the L Button three times, Right C, Right, Left, Left, C Left.
3) INVINCIBILITY
With this code, you can only die if you get severly injured (i.e. crushed by walls or smashed). On the Title screen and press the R Button seven times, then Left on the Control Pad.
4) NO MONSTERS
This code allows you to turn the monsters off or on in the levels. On the Title screen press the L Button, Left C, Left, R Button, Right C, Right, Left, Left.
5) ALL ITEMS
On the Title screen, press R Button, Right C, Right, L Button, Left C, Left, Right C, Right.
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