HOW TO ENTER LEVEL 17
Level 17 can only be accessed if: You have explored levels 1, 2, and 3 in order. You have not enabled the cheat codes during these levels. Read the Doom Level 3 to enter it

GOD MODE
You need a six button controller. Pause the game and press Up, Mode, X, and Z all at the same time.

WEAPON CODE
You need a six button controller. Pause the game andpress Up, Mode, A, and C all at the same time

TRICK
These codes are pretty hard to do so keep cool and try it. The best way I have found to do it is to put the cursor on the music on/off, then hit the buttons 10 or 15 times. Now exit andyou should see your ammo increase to 500, your shield at 200%,all weapons, and the little face should have white eyes. This mean you can now play as you like. It is so cool to kill Baronsof Hell with just the Chainsaw or Hands. You can do the weapon code many time in the same level if you run out of ammo. Also, to get the Color Key Cards if you don't find them because each time you end a level the Key Cards will disappear and your ammowill reset to 500