If you remember this level is set up like a Cube and as we cleared sides new ones appeared, well now that they have all been cleared you have to go to the sides and press buttons to make the areas appear. Each button has a sign with a picture on it, I'll tell you what side to go to based upon these pictures.
First, the bed-side. Directly to your right when you start the level is the first Cobweb, grab it. That's it for this side, shoot the buttons to close it up.
Now head to the "boot" side. Head to the backside of the shoebox tower and jump up a box or two to get a Cobweb. Go to the box right above the first Censor shooting stuff at you for another Cobweb. That's it for here.
Now to the side with all the steps and flames. There is a Cobweb at the bottom of one of the stairs on the backside.
NOT DONE