The Orange stairway is as it first appears a seemingly endless set of stairs but in actuality is navigatable and will lead to you Oreko's Laboratory.
After getting here from the industrial maze go either up or down a flight of stairs. When you see an orange orb, stop and go directly underneath it - then go back the way you came. You will get to a door with two orange orbs surrounding it - this will take you to the depths of the orange stairway and eventually Oreko's Lab.
- Industrial Maze (by going through the eye door)
- Oreko's Laboratory (by going through the black and orange machine)
- The Orange and black machinery here is similar to one that Oreko is seen working on in her house underwater.