Waaah! Not able to customize like the "original." Not able to put away the demons and friendly fire and all the challenging stuff... Space Bar, N and M weapon selection, and arrows ftw. Always bet on black! Rockets, then barrels, then rockets, then barrels...
This is a classic. I play it with all the cheats enabled. (Friendly fire, demons, bumping into walls, all off.) Rocket launcher, several survivors let me set up barrels like chrome for Valhalla, pistol the several, then it's HELLO EVERYBODY and run and run and run and PHOOOM rinse repeat black and red floors oh hey.
 "Boxhead: More Rooms"){kind=icon}
 "Boxhead: 2Play Rooms"){kind=icon}