Continue west, but turn south when you see the teleporter, to reach the red key. Navigate the maze, heading to the west to reach the second room. The teleports in this section will return you to near the blue key area. Enter the pit on the north, and grab one radiation suit.
You can cross the bridge if you raised it, or take the stairs on either side. Take a left turn to see a room separated by the chasm. Return to the main central room, and head east. One switch opens a secret (see below), while the other raises a bridge later in the map. There is also two switches on the southern wall to the left. While grabbing the key lowers the bridges into the surrounding nukage moat, it is not much of an obstacle if you run across it. In either path, the blue key is located at the south-east corner. The east path leads past two demons, while the southern path leads past an alcove containing green armor, and ammo. There are two paths to reach the blue key from the circular room. Head to the left exit and turn towards the south.
