Weapons are: fist, chainsaw, pistol, shotgun, chaingun, rocket launcher, plasma rifle, and BFG 9000, which fires a huge plasma ball. In Doom, players progress through each level, blasting away enemies while solving puzzles (involving switches, keycards, and skull-shaped key devices), avoiding environmental hazards (such as crushing ceilings, radioactive acid, and burning lava), and collecting weapons, ammo, and other items (including first-aid kits, body armor, suits that protect from radiation, night-vision goggles, computer maps, and supernatural orbs that grant a special bonus to the player).
Features: Doom is a science-fiction/horror first-person shooter where the player, as a nameless space marine, liberate space stations from demon infestation.
