You can only hurt him when the light on his back turns blue use rockets and then switch to your gun to take out the small searching spotlight things he sends to find you. Time for the big scary end of level boss, this guy is a huge guardian and he means business. Jumping into the beam will trigger a cut scene. When you reach the beam turn right and make sure you get all the pick ups before jumping into it, youвЂ™re going to need them. Be careful when you back off that you donвЂ™t stand in the fire! When heвЂ™s dead go through to the right and up the stairs. Take the corridor on the left and a hellknight will appear on your left hand side. As you enter there is another mancubus to your left and then some cherubs. ThereвЂ™s a mancubus waiting straight through the door. Grab the pick ups on the right and go up the next set of stairs. Head through the doorway at the end on the left, up the stairs on the right and kill a mancubus. When you turn right at the end there are some cherubs and some lost souls. Grab more pick ups ahead to the right and turn to kill another hellknight that spawns in, then head along the corridor and kill another hellknight. There are imps left and right, grab the pick ups from the left corner and kill another imp ahead then a hellknight behind you. Grab the medkits on the right then thereвЂ™s another hellknight through the door at the end on the left. Kill a hellknight to your right as you enter, then some lost souls. Kill the two lost souls, grab the pick ups up on the left and waste the zombies with your chainsaw before proceeding through the next door. Kill more lost souls, grab a medkit from the left and some armor down the stairs before you proceed along the bridge, across the planks and up some stairs. Grab the medkit from the left alcove and proceed. Kill the lost souls that zoom in and then imps will pop up right and left as you enter. Climb the stairs and kill another imp and then turn left and go through the next door. Head straight on at the top for some pick ups then double back and turn right to kill two imps. Run under the rock as it lifts up and jump across the next passage, kill the lost souls and follow it round and up the stairs to kill an imp. When you walk forward a big rock will slam down and a mancubus will spawn in to your right on a platform. Head through the doors once you have everything. YouвЂ™ll find Simon GarlickвЂ™s PDA and some goodies including a rocket launcher. When theyвЂ™re done grab the pick ups scattered around and proceed along the corridor. Unidentified DeeperДЄt the bottom grab the beserker helmet and run around pulping the various imps and the hellknight that spawn in with the chainsaw. Make sure you grab the pick ups first because when you get the gun the floor will collapse. When the mancubus is down head through for some pick ups and a plasma gun. Head in and kill the cherubs that spawn, followed by a mancubus. Enter the alcove after you kill him for more pick ups then kill two more imps and the bars will recede into the floor. There are two lost souls ahead and then a hellknight spawns in behind you, followed by an imp in an alcove. Enter the doorway on your left and grab the medkit. On the left youвЂ™ll find a chaingun, while on the right two imps will spawn in, followed by some lost souls.Д¬ontinue on and carefully jump across the stepping stones.

Now go back and grab the chainsaw from the right hand side of the door that the hellknight came through, and then proceed through it. ThereвЂ™s another two cherubs and some armor and more shells.

When theyвЂ™re done youвЂ™ll see a bridge forming, cross it and head into the passage - grab the ammo on your right.ДЄ hellknight will emerge as the wall parts kill him then head down the right passage and kill a cherub and an imp. Kill the imps surrounding you but be careful not to fall off the edge. Stand in the green beam and youвЂ™ll be sucked up a cage forms around you and then it drops to the ground and breaks leaving you surrounded by enemies. Grab the pick ups around you then cross the bridge ahead and climb the stairs.

Doom 3 hell walkthrough