This game is really funny and I enjoyed playing it :D.
Yet I foung a bug in the torture room, destroy the three crates and the three block on the right. Then you just have to wait near the right door. Monsters will spawn on a block and they won't move. The other coming from the left won't spawn. Then you just have to wait 3 minutes to get out of here.
5/5 though :)
I found two "Fun facts". The first is after the double jump, take the elevator then when you'll see the bat go to the flying island next to the elevator. You'll see an egg. Then the second is outside the mountain. Just climb it and you'll find the egg on the top of the moutain in a hidden tunnel.