Going into the men's room results in you teleporting back to the start without any clothing. Another adventurer in the same armor you started in quickly appears and stabs you without much though.
Going into the room with a star unlocks an achievement and results in you teleporting back to the start naked and then the game ends.
Also, the star room is a lair for dorks and the mens room is, well, a men's bathroom.
Level 35 ("Is your head hurting yet from all these puzzles?") is extremely annoying. I figured that you had to break the floor with your head but after a minute with nothing happened I looked it up in a guide only to confirm it. I have been standing on the first spike for at least 5 minutes now with no hole and I have even moved him around a little bit every minute or so to make him hit a different spot. No matter what I do the ceiling will not break open. I'm going to go insane.
I just had an awesome thing happen. I was In GH world for the first time, and I was only trying to hit all the planets, but I kept getting 4 and under scores, so I thought I was going to get the gold also. On the 7th hole I launched it as far as possible toward the cluster of planets, it hit 3 planets, bounced off screen, came back and hit another planet, then bounced out again, it then came down and slid straight though the gate at 3,400. I ended GH world with a gold medal, the only bad part is on that hole I missed one planet and now I have to go redo it =\