DOOM 64

chainsaw hell bloody demon space station health plasma rifle first person shooter fps sci-fi hand-to-hand combat shooter sprite-scaling demons horror spin-off easter egg teleportation heavy metal resurrection space marine no jumping possession one-man army darkness bosses radiation machine gun power up crate health pack platform exclusive bullet world map first-person perspective demon invasion human polygonal 3d upgradeable weapons slime computer health potion gun armor backpack original soundtrack release helmet fist "game" 64 shotgun rocket launcher the locked door extreme violence elevator pistol gatling gun first aid kit lava key exit door double barreled shotgun barrel auto-aim melee heads up display secret area hitscan teleporter difficulty level laser exploding barrel pick ups map level titles rocket exploding enemies temporary invincibility energy weapons splash damage plasma ambient music magazine circle-strafing invisibility enemy roll call exploding crates armor points monster infighting shotgun shells satanism ammo monster closet password hidden door hidden room attract mode pentagram secret areas within secret areas ammo box starter weapon night vision goggles corruption plasma gun imp energy cell bfg9000 ultimate weapon corridor crawler spectre stimpak cacodemon radiation suit clip lost soul mancubus pain elemental hell knight arachnotron shotgun guy baron of hell zombieman pinky super shotgun cyberdemon union aerospace corporation invulnerability artifacts berserk pack soul sphere megasphere e3 1997 e3 1996 blur artifacts retroachievements controller pak