This episode is much harder than the first episode, yet still isn't all that hard, except maybe on Ultra-Violence if you're not that good a
Doom player.

E2M1- Deimos Anomaly

i. At the start, turn right at the first chance you get. Then go through the red gateway and shortly after you'll find the blue key.
ii. Go back then go through the teleporter
iii. Continue forwards, but be careful at the 'bridge', it will collapse when you go over it.
iv. Go through the next teleporter, and press the switch on the S side of the wall in the indent.
v. Kill the demons and go around the wall through the blue door. (If you got the red key you may want to search that room...)
vi. After going through the teleporter, press the switch on the southern side of the part of the wall that's sticking out.
vii. Go up the new stairs and press the switch there.
viii. Go back downstairs and through the new teleporter.
ix. Head forwards, then go into the exit.

E2M2- Containment Area

Yellow Key

i. Stick to the left hand wall until you can see an opening into a larger corridor.
ii. In the large chamber go S, and press the switch to raise the stairs
iii. Go left around the wall, then step underneath the blue lights to safely get the yellow key.

Blue key

i. Cross the pathway again then go through the SW passage in the room.
ii. Go forwards and left around to some crushing walls.
iii. Time your run under the walls, then continue on, over a slime pit, to the blue key.

Red key and exit

i. Go downstairs and through the blue door.
ii. Go right through another blue door and grab the key.
iii. Retrace your steps to the red door (OR) Go back to the room immediately before the yellow key room and go through the SW passage to the red door.
iv. Head around the narrow corridor and flick the switch.
v. Go back through the red door, then through to the exit.

OR YOU CAN GO THE CHEATER'S WAY AND

i. Go to the big room as in the normal solution.
ii. This time go W to the slime tunnel (grab the radiation suit!)
iii. When you reach the area below the exit, you can aim yourself so you can press the switch that you would normally need the red key to access. After you manage to active it, quickly run onto the bridge so you won't get trapped.

E2M3- Refinery

Blue key

i. Head S then go right around the 'structure' to go through the SW passage.
ii. Cross the slime pit and go W.
iii. Go N and just before you enter the barrel room turn W then enter the room to get the blue key.

Exit

i. Return to the room with the shotgun and go W into the room with the slime pool in the centre.
ii. There is a wall on the E side that will open up when you activate it. Go through.
iii. Go E as far as you can then go N. When you reach the blue door go through.
iv. Follow the corridor around until you reach a dark room with a flickering light.
v. Go against the right-hand wall (keep to the northern end of the maze).
vi. You should end up at a slime pit. Cross it, then follow the passage to the exit room.

E2M4- Deimos Lab

Blue Key

i. Head through the teleporter at the start.
ii. Go through the large opening to the left.
iii. Keep going W until you reach a wall in a blue area.
iv. Follow the corridor around to the S and go through a door.
v. Press the switch near the elevator to lower it, then ride it up to the blue key.

Yellow key

i. Return to the evil symbol in the blue room.
ii. Go N then through the blue door.
iii. In the red area, keep going until you see the yellow key under an odd looking ceiling.
iv. RUN underneath the ceiling and grab the yellow key.

Get out alive

i. Go through the yellow door then travel around to the northern end of the room.
ii. Go onto the red platform, which will lower.
iii. Go to the S side of the large central 'pillar' to find a switch.
iv. Press the switch, and climb the stairs. Keep repeating switch pressing and stair climbing until you reach a lit stand.
v. Stand on the stand, then go downstairs and onto the new teleporter.
vi. Drop into the blood pit then go to the NE side of the room and press the switch.
vii. Enter the nearby teleporter.
viii. Step forwards a bit then go back to re-teleport.
ix. Cross the bridge to the exit, although you may want to get that soulsphere which becomes accessible just before you enter the exit room.

E2M5- Command center

Please note: This level is very mazey, yet features no keys so please follow the solution CAREFULLY. Unless of course, you want to go to the secret level
or have fun wandering the maze.

i. Head S outside, then go to the NW of this room and go upstairs.
ii. Go through the W door and follow the passage around to the next door.
iii. Head S through the next room to an area with lots of doors and three pillars. Go through the NE door [From the symbol's view it would be the one to the FAR LEFT, just out of its line of sight].
iv. Go through the very next door you see. Go upstairs then through the door at the very top of the stairs.
v. Go down the left-hand set of stairs, at the bottom you should be in a room with a radiation suit, grab it.
vi. Open the door in this room and cross the slime floor and go upstairs.
vii. Open the door at the top, then go through the very first door you can see.
viii. Travel in a NW direction until you can see the exit.

E2M6- Halls of the Damned

Blue key

i. Go into the open room, then open the SE door.
ii. Press the switch then return to the first room and go through the new opening.
iii. Head N to an area with some mini-pillars and a switch. Press the switch and grab the berserk pack.
iv. A new passage has opened in the SE corner of this level, follow it to the end and press the switch.
v. Go back through the passage and turn left to an area with a blue door and a normal door.
vi. Go through the normal door and head SE to find the blue key. (Watch out for the monsters!)

You can get either key next but I'll list them in the order I get them.

Red key

i. Head in a westerly direction until you see a dark area [I hate this place:(]
ii. The door to the next part of the maze is on the southern wall.
iii. The red key is in the western area of this maze. (Go NW from the door then S to be in an area VERY close to the red key)
iv. Retrace your steps to the area where you entered.

Yellow key

i. Go N past the first 'candle door' to the second 'candle door.' Enter.
ii. Go to the next door and head through to a very tiny room with a switch. Press it then go through the recently opened door.
iii. Follow the long corridor then go through the S door.
iv. Go round the wall and grab the yellow key.
v. Go back through the door, and head through the SW door.
vi. Retrace your steps to the entrance, being wary of some newly released monsters.

Exit

i. Make your way back to the blue door and go through it, and the following red and yellow doors, to the exit.

E2M7- Spawning Vats

Blue key

i. Go through the small SE corridor and follow it around to a large box room.
ii. Go to the SW corner of the room and press the switch. Follow the hallway around.
iii. Go to the S end of this room to get the blue key.

Yellow key

i. Press the switch in the SE corner of this room, then retrace your steps back to the beginning room.
ii. Go through the other hallway and go through the blue door as soon as you see it.
iii. Head downstairs and through the opening on the left.
iv. Go around the wall to some stairs, head up them then grab the yellow key at the top.

Red key

i. Drop off the platform then head through the opposite door.
ii. Head E then go through the yellow door.
iii. Go through the SW door, then head around the machine in the centre to go through a corridor to a switch.
iv. Press the switch then go back to the machine and grab the key that's now there.

Blow this hellhole

i. Go back through the yellow door and head W to the area with the long stretch of lighted blue floor.
ii. Go through the SW door.
iii. Head through the red door and press the switch, then press the switch behind that.
iv. Cross the bridge to the finish.

E2M8- Tower of Babel

Defeat the Cyberdemon Lord

i. Press any of the switches and head through any of the opened doors.
ii. Go outside and kill the Cyberdemon.

HINTS FOR CYBERDEMON

There are 3 ways you can defeat him, they are listed as follows:

1. Get the rocket launcher and shoot volleys of rockets at him, strafing to avoid the Cyberdemon's rockets. As you may have heard before this is a good level to
practice strafing.
2. Get out the chaingun or pistol and fire at the Cyberdemon through the small gaps between the pillars at the corners of the central building. Your shots should
pass through but the Cyberdemon's won't. This takes a while though.
3. Try to get the Cyberdemon stuck in one of those supply rooms, and go into the opposite room and fire at him so your shots fire over the pillar with the door opening switches. I have seen this in a demo and have managed to do it, however, occasionally the demon may manage to fire over it.

Be careful on Ultra-Violence as the Lost Souls can distract your marines shots.

E2M9- Fortress of Mystery

Survive

i. Go through the door to the E
ii. Before going through the next door to the E, you may want to kill most of the monsters, or get the monsters to attack each other.
iii. Press the skull switch, get the key, then I think you can finish this stage without too much difficulty.