All Items 
       Enter the CHEAT MENU code shown below, then return to the main menu and press R, C-Right,
       Right, L, C-Left, Left, C-Right, Right. A new item called "ALL ITEMS" should become available. 

Big Duke, Little Duke 
       There is a way to play big or small in Duke Nukem. This code will work on co-op or deathmatch. 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 weapons). 

       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.) 

Cheat Menu 
       At the main menu. press Left, Left, L, L, Right, Right, Left, Left to access the Cheat Menu. 

Come Fire Walk With Me 
       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. 

Defeating the Cycloid Emperor 
       The Cycloid Emperor resides in the last level, The Stadium. Once you start out grab the Atomic Healths
       to your right. And stand at the sidewalk and wait for the bad guy to notice you. When he does jump up
       on the seats and dodge his Octabrain Breath and once its done go back down (stay on the bleachers
       though!) and whale on him with whatever you got. Now go back up and dodge it again. Repeat this
       proces until your the ruler of the world! (or until you kill the Emporer!) 

Defeating the Overlord 
       When fighting the Overlord, stay in the water but don't submerge. As long as you're at the surface you
       can hit him but he can't hit you. Don't use explosive weapons. If you do you'll die too. 

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. You will gradually regain your energy. 

Ghost Duke 
       In a one player dukematch, turn on the all items code and kill yourself with a pipebomb. BEFORE you
       press open, turn on Invincibility and you will come back to life. now turn off invincibility and you will
       be invisible to all of the dukebots. 

God Mode 
       Enter the CHEAT MENU code shown above, then press R seven times followed by LEFT on the d-pad
       (not the analog stick.) If you did it right you'll hear a tone. Now go into the cheat menu and turn
       invincibility on. 

How do you Spell Relief? 
       If you're low on health, take Duke to a restroom and stand him in front of a toilet or urinal. Press the
       action button (A by default) and Duke will relieve himself for some health. 

Infinite Jet Pack 
       While you're in the air with the jet pack, turn on the All Items code. You now have unlimited fuel for
       your jet pack. 

Level Select 
       Enter the CHEAT MENU code shown above, then press L, L, L, C-Right, Right, Left, Left, C-Left. 

Multi-Player Damage 
       Here is a chart for duke matches on how much armor, and health without armor gets taken away with the
       guns with one shot: 

       Gun                Armor      Power with Armor
       dum dum             33%           41
       pistol               2%            6
       explosive shotgun   52%           72
       shotgun             12%           62
       smg's                6%            9
       grenade             27%          112
       pipebomb            49%           57
       expander             6%            8
       heat seeker         28%          110
       missle              38%           70
       tripbomb            30%           62
       plasma cannon       12%           18

No Monsters 
       Go to the cheat menu (see above) then press L, LEFT C, LEFT, R, RIGHT C, RIGHT, LEFT, LEFT,
       RIGHT. You will hear a siren if you did the code correctly. Then go in the cheat menu and now you can
       turn the monsters on and off. 

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 on
       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 telefraged. 

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