Wish it wasn't so buggy.
First time through, I got the key to the starting room but couldn't open to the door to the next room.
RESTART
Second time through, when I opened the map, keys were all over the screen, not just in rooms that had keys in them.
In the boss room, before I dropped down to fight the boss, it looked the I was stuck between layers. I couldn't move anywhere and eventually mashed buttons until I was able to free my character and move him around.
Fought the boss, beat the boss, the game cuts to a black screen with a 59 second countdown when I had able 20 minutes left. It never cuts away from the black screen and I can't control my character. The time elapses and I get sent back the front room of a changed castle.
RESTART
Realized I'm not going to waste my time trying again.
Good game, but it could be great. Please take time to fix these glitches.