level 18

Start off going left, kill the witch, jump on the yellow pylon then up on the ledge, flip the switch to green, jump across the pylons to the ledge with the plain colored switch, flip it and the gates will go down in front of the door, jump back across the grenn pylons to the first ledge with the green/yellow switch but don't flip it. Jump off the ledge back to the floor where you came into the level, go to the far right side kill the witch and jump onto the green pylon and then onto the ledge. Flip the switch to yellow. Jump across the pylons to the ledge in the upper left corner. There is a plain colored switch, flip it and the lock on the door will fall. Jump back across the yellow pylons until you get to the ledge with the green/yellow switch but don't flip it to green. Jump off the ledge back onto the floor. Go back across the floor yo the left side, jump onto the yellow pylon and up onto the ledge. Flip the switch to green, jump across the green pylons, when you get to the tower type thingy in the middle now you jump on the green pylons leading to the door which will open now.