Big Boy Achievement in Doom 3: BFG Edition

  • Big Boy



    Defeat Cyberdemon boss in DOOM 3

    How to unlock Big Boy

    Story related and cannot be missed.

    This is the final boss of the main game; the infamous Cyberdemon. He is actually fairly easy to beat, even on Nightmare. What you’re going to want to do is to stay as far away from him as possible and keep dodging his missiles, just like in classic Doom. Use smaller enemies to charge the Soul Cube, and then launch it at him a total of FOUR times. Four hits from the Soul Cube will kill the Cyberdemon.

First unlocked by

Recently unlocked by

  • Primary Excavation Site. Final boss of the game at the very end of the game.
  • Very last boss, takes 3 shots from the soul cube to kill him. Just run around using rocket launcher on the other guys until you can use the soul cube.

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