MAP24: Rainbow Bridge (Eternal Doom)

MAP24: Rainbow Bridge is the tenth map of Eternal Doom. It was designed by Chris Couleur.

Walkthrough
Take the shotgun and the box of shells and walk in the middle of the two central walls to be lowered to the courtyard. Head south, killing sergeants and imps, and open the gate next to a teleporter that you still cannot use (as you open the gate, several spectres will be released). The stairs will rise as you enter the hallway. As you take the box of shells and the medikit, the wall in front disappears, revealing a zombieman, a pack of demons, two hell knights, and two cacodemons. There are weapons and a berserk pack near the columns. Kill the monsters and go to the back of the central building, kill the hell knights and go through the door. You will be now in a big room with four big columns and two balconies overlooking it. Watch out for the imps, demons and cacodemons. The blue skull door is on the south-eastern balcony.

Blue skull key To get the blue skull key, go through the door in the north-eastern balcony and through the hallway. Kill the sergeant and the hell knight and go ahead until you reach two doors. Go through the door at your left. You are now in a big walkway with a soul sphere next to a column. There are many monsters in this part, including cacodemons, hell knights, barons and revenants. Grab the soul sphere and take down enough of them so you can get to the stairs on the other side, where you will reach a door you cannot open yet. Go to the top of the stairs, this opens a hidden door in one of the columns. Return to the walkway, kill the pain elemental inside the column and hit the switch to open the door at the top of the stairs (this will also reveal hell knights at the other side of the door). You will be now in another walkway with a berserk pack in the central column, a room with book shelves behind and two towers, to the left (west) and right (east). Head to the tower on the east and hit the ‘X’ mark to lower the floor. Kill the revenant, open the door and go through the teleporter. This teleporter takes you to the central building next to the four columns at the beginning. Go through the door on the east side of the building. At the back of the room there is a lift that takes you to the top of the building, where the blue skull key is. Take it and step in the teleporter back to the tower.

Red skull key Go all the way back to the blue door and through it. You will be now in an open area with a grey tower in the middle, there is a hell knight in the tower, as well as several imps, sergeants and cacodemons. Ride the elevator on the other side, go to the right and around the corner, fighting imps and a hell knight. At some point the wall behind opens revealing another room, another hell knight and a pain elemental. Go through the walkway at the end of this room and through the door. You will be now in a walkway with four wooden columns. Fight all your way through the door in the middle. Behind the door is a revenant guarding a soul sphere. There are also two more towers, similar to the one leading to the blue skull key. Go into both of them the same way as the other one and activate both skull switches. Go back through the door and turn left. The lift at the end of the walkway is now accessible, so ride it down and go through the door at the end of the hallway. Go through the opening around the corner and up the stairs. Now stand in the room, facing north (looking at the armor). Run in that direction and you will land in the base of the column where the armor is. Activate the column to lower it and ride it taking the armor, then run to the building in front. Go through the whit door, kill the hell knight, and activate the wall at the end of the hallway, and ride the lift up. You are now next to an outdoor area with cages, a red grave and a column with a plasma gun on top. First turn back and go through the passage where the lift was and activate the switch to raise the walkway to the left, so you can access an opening with stairs at the end of it. Go down those stairs killing zombies and imps and you will reach a room with a green torch and a skull switch. Hit the switch to lower the room and reveal two rooms with demons and a hallway. Get into the hallway and activate the wall at the end. This lowers a lift and gives you access to a white door on the right side. Go through the door (if you stay on the lift you will be taken back to the top of the stairs) and follow the ledge to the right. You will notice a door that you cannot reach up in the wall at your right. At the end of the ledge, you will find a small room with a switch, guarded by a chaingunner. Hit the switch, which enables the stairs so you can now access the door. Go down the hallway and activate the red wall at the end, which is a lift. Now you are on top of the red grave you saw before. Activate the stone switch in front of you. This opens the door of the building at your right (north). Watch out because there are enemies in the cages overlooking the yard and around the grave. Go inside the building and activate the eye switch, which lowers a lift to your right. Kill the imps and activate the stone switch. Get out of the building and head right. Go through the newly open door, killing a chaingunner and a spectre. Go down the stairs and turn right (south). There is a door on your left that you cannot reach. Continue and jump down into the small room with three brown/white columns and a cacodemon, as well as chaingunners and imps behind the columns. There are also two flashing walls on the sides with ‘X’ marks. The northern one lowers the wall on the south side, giving access to another ‘X’ switch (which enables the stairs to the previously inaccessible door), guarded by a hell knight. The southern one raises stairs to go back to where you were. Go through the now accessible door, which leads to a big walkway around the last building of the level. There is a lot of opposition in this part, so be careful. There is a big central building in the middle, which can be accessed from the four sides. First, there are four walls (between two big wooden columns each) that must be opened to allow access to the building, but I do not know exactly how it is triggered. I just walked around until they opened, so I am assuming they are timed in some way. Anyway, you are now in one of the four bridges leading to the central building. The bridge on the south side has a stone switch in it. Hit it, and a wall will open at the end of the western bridge. This will give you access to another walkway with a couple of arachnotrons on it. Watch out because there is also a cyberdemon and several hell knights and barons out here. Go to the left, and follow the walkway until you reach some wide stairs. Go down the stairs until you reach a yard with revenants, hell knights, arachnotrons and a pain elemental. Go ahead this walkway to the other side to another stairs to another yard. At the end of this yard is the red skull key.

Yellow skull key Head all the way back to the door where you accessed this last section. South of it there is an opening which leads to the red skull door. Go inside, open the door with the radiation sign and go downstairs. Now you are in an underground room with two columns and seven waste pipes. Note that there are also two switches, one at your right (west) and the other one straight ahead (south). Hit the switch to your right to raise a walkway leading to the other switch. Hit the other switch and go back upstairs and through the red skull door. Return to the central building. You should now have access to a lift on the south side of the building. Ride it up, kill the revenants (or kill them before you ride up) and go through the door on the other side of the room. Inside this small room is the yellow skull key guarded by a baron of hell. Kill the baron, grab the key, and go back to the outer walkway.

This time go to your right, and at some point you will find an opening to your left with a yellow skull switch. Hit it to open the yellow skull door at the end of the walkway.and go through the teleporter to finish the level.

Secrets 1. In the yard where the red grave is, there is a switch in the southwest, across the small tunnel to the left. Activate it to open the south side of the tunnel, revealing another switch. Hit that one to open the other side of the bridge, which has another switch (and an imp). When you hit that switch, an elevator drops at the two columns in the south of the red grave. Ride it up and turn back. There is another switch up there. Shoot it to lower the floor between you and another switch behind the columns. The area where this last switch is counts as a secret. Hit the switch to lower the plasma gun in the nearby column. 2. After you get to the red-grave yard and activate the switch that raises the walkway. Go through this walkway to the stairs, but before going down, activate the wall to your right (right where it ends) to lower it. Ride it up to where a sergeant is guarding a megasphere. 3. In the south bridge of the last section, right in front of the stone switch, there is a misaligned wall. Activate it to reveal a hallway that houses revenants and imps, as well as a mancubus. Near the end of the hallway, before you reach the area with grass, there is another misaligned wall to the left. Activate it (it is a lift) and ride it up. This upper area is marked as a secret and contains three boxes of rockets, two cell packs, a medikit, a berserk pack and a megasphere.