Then unlock the gate west of the central hub, take the teleporter to the biomes area. To get to the secret area with the four biomes, first you will need to get the eye of a blue-suited scientist from the north sector of the map. At the northernmost part of the passage the portal may appear.Ģ. Head to the NE of the map, shoot the wall there, take the teleporter to a small room, shoot the south wall, shoot the blue floor button, exit south, shoot through the gap in the wall (northward), to open the locked door to the passage. This one is located in the very north of the map in a locked-off passage. Since all the locations are related to secrets, the descriptions are a bit more detailed.ġ. In some cases it is enough to walk past the locations, but since the cube when shot will yield a star you might also actually want to get to it. The cameo will occur at random in one of four locations in the map. Note that this is not tracked by an achievement.

This Easter Egg features a very brief cameo by Portal's Chell, who opens a portal and places the Companion Cube in the map using her portal gun.

Duke nukem easter eggs