Duke Nukem 64

Level Warp - L, L, L, Right C, Right, Left, Left, Left C

Size Glitch - This code will work on co-op or death match. To do this code in co-op you need Invincibility and items codes. Turn on friendly fire, then use the weapons code, shoot your buddy with the shrinker, or expander.

Small Duke -  Shoot, put on invincibility then turn it off again. The player will not grow back The drawback: you can't have any weapon.

Big Duke - Get the expander, (with god mode off) and shoot the other Duke until he starts to expand. Just before he explodes put on god mode, stop shooting, then turn off god mode. You now have a giant duke that still can be killed. (Note, you may have to try it a few times to get it right).

Turn Monsters off - To turn monsters off first you have to get the cheat menu by pressing Left, Left, L, L, Right Right, Left, Left then on the main menu press in L, left C. Left, R, Right C, Right, Left, Left, Right.

Invincibility - To get the invincibility code players must first enter the cheat menu code ( Press the following at the main menu to access the hidden cheat menu: LEFT, LEFT, L, L, RIGHT, RIGHT, LEFT, LEFT. Now the cheat menu will be accessible). Then simply hit R button seven times in a row  and then press left on the directional pad. A sound should signify that it worked. Now go into the cheat menu and turn invincibility on.

Fire walk - You can safely walk on lava for a infinite amount of time by pressing the  jump button enough that your feet aren't on the ground for more than a   second. Keep it up and you can stay in lava without protection for as long  as you want.

Weapon Warp -
In Deathmatch, any weapon can be thrown into a teleporter to have it appear on the other end. Bullets, missiles, grenades, plasma, it all goes through. You have to wait for the item to completely pass before you can throw in another, i.e.- rapid fire bullets will not go through. This is great for dropping gifts in for your opponents while you stay safe. Just be careful not to stand on a teleporter for too long, because if someone else steps on it, you'll get telefragged.

Turn Items On -Perform the code to access the cheat menu (from main menu: LEFT, LEFT, L, L, RIGHT, RIGHT, LEFT, LEFT). Now at the main menu input: R, Right C, RIGHT, L, Left C, LEFT, Right C, RIGHT. This will enable all items to be toggled on or off.

Cheat Menu - Press the following at the main menu to access the hidden cheat menu: LEFT, LEFT, L, L, RIGHT, RIGHT, LEFT, LEFT. Now the cheat menu will be accessible.

Fountain of Youth - It's always fun to blow stuff up right? Well now you can have fun and get power at the same time. First, the fun part: Shoot or blow up a water fountain, fire hydrant, or even a toilet. Then: Walk over to the water that's squirting up and hold "A" {default} You will gradually regain your energy.


  • "Customer Cheat" means it's the cheat given out with the registered version of the software.
  • "Debug Mode" means it's an unsupported cheat mode.
  • "Tech Parameter" means it's a code that does something, but really isn't a cheat, it's more or less there to help Apogee Customer Support.
  • "Misc Command Line Parameter" is the same type of thing as Tech Parameter.

Cheat keys are not officially supported by Apogee. If you use the debug keys, Apogee cannot provide any support, since this alters game performance to a state where our standard support comments and issues might not apply. In short, using cheat keys can cause the game to malfunction or crash. Use at your own risk!