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DOOM 3 Hints
The big boss is *very* big indeed! How can I kill it?
1 of 9: This new and improved version of the old DOOM cyberdemon is a virtual mountain of muscle, with 4,000 hit points. Just as in the old games, it can fire very powerful rockets at you.
2 of 9: Unlike the old games, it can also stomp you flat if you get too close to it.
3 of 9: Also, it's totally impervious to all of your weapons except for the soulcube. That thing has been very useful so far, but now it's utterly essential!
4 of 9: You need to hit the cyberdemon a total of 4 times with the soulcube in order to kill it and win the game.
5 of 9: Fortunately, the nearby hellgate provides an endless supply of imps and maggots to blow away in order to charge up the soulcube. (TIP: Use the BFG to quickly blast several imps and maggots at once and get the soulcube charged faster.)
6 of 9: Note that there's the additional hazard of accidentally falling off the combat arena and plunging to your death in the hellish magma below.
7 of 9: This actually shouldn't be too hard if you keep running around the central hellgate and blasting imps and maggots with powerful weapons to kill them quickly while at the same time staying away from the cyberdemon's rockets and feet. You just need to make sure that when you fire your soulcube at ol' cyber, it hits him instead of one of the lesser demons.
8 of 9: When you hit him with the soulcube for the fourth time, the endgame cut-scene will come on, showing you the fate of your marine, the cyberclunker, and Dr. Bertruger.
9 of 9: At least until the expansion pack, Resurrection of Evil.
