Start the game with the command "wolf3d goobers". While playing, press LEFT ALT + LEFT SHIFT + BACKSPACE at the same time to enable cheat codes. To use them, hold any of the key combinations below:

TAB+B change the border colorTAB+B Border colorTAB+C display statistics for the current levelTAB+E warp to the end of the current levelTAB+F displays your coordinatesTAB+G God ModeTAB+H removes healthTAB+I boost your weapons, health and ammoTAB+M shows current memory usageTAB+P pause the gameTAB+Q quit the gameTAB+S activates a slow-motion modeTAB+T graphics testTAB+V adds vertical-blank interrupts for slower machinesTAB+W to warp to any levelTAB+X gives you "Extra Stuff" (?)