What I discovered so far:
- If there are three fire pilars in a "L" shape, place a torch in the remaining spot.
- There are some walls with a light shade, they are illusive walls. Look in the first room, for example
- The spikes are a lie
- If you hit a pot 50 times in a row it will break and give you a health potion
- There's a pushable block with 4 statues. Place it in front of the only that has a slighty different color