Commands
http://www.cygnusloop.com/lameduke/commands.htm

Here are all the known commands and controls for Lame Duke. Large amounts of people e-mailed in and gave me this information, so if it's wrong, blame them, not me. If you think this section is incomplete, e-mail me, and I will add it here.

Special thanks to all the people who e-mailed me these keys, codes, and tips.

Those F'in keys:

F1 - Help (Ironically, it's not too helpful)
F2 - Quick save
F3 - Quick load
F4 - Holoduke
F5 - Toggles jetpack
F10 - Visibility/Brightness (I'm told it's different than hitting V)
F12 - Takes screenshot

Letters of the alphabet:

A - Jump
C - Duke cracks his knuckles
I - Inventory of what ya got
K - Flashes some weird graphic onto the screen
M - Turns music on/off
P - Pauses the game
T - Type a message
U - Unlocks/locks all doors and switches
V - Changes the visibility of the level
W - Warp mode. Use the up and down arrows to change the level number and PgUp and PgDn to change the episode number.

Those other weird keys:

Esc - Brings up the main menu
Space - In an elevator, use A and space to go up, Z and space to go down

Some notes:

Screenshots are saved in the current directory as CAPTxxxx.PCX, where xxxx is an incrementing number starting at 0. Each time you start the game, it starts at zero again, so move those precious gibbing screenshots out of that directory if you want to save them.

Edit the GAME.CON file! You can change the level music, turn God mode off, and more.

A "feature": Switch to the RPG (weapon 5). Fire the weapon, and then hit Enter which parks the gun. You can then fire the gun again without it being visible.