Puzzles, visuals and music, (but it really needed to be a bit longer).
A couple of issues:
1. Anime style guy does't really blend in
2. Need the walkthrough to pass the gas. Where's the hint for this four circles?
3. You don't really need stones nubered 4 and 3 to solve the scales puzzle. So no need in them in further locations.
4. I've managed to fit 3 skull medalions in two slots. That's it: no medalions in the inventory and one empty slot on the lock. The gate wouldn't open and you can't take the medalion out to place it where it belongs. Had to start all over again.
Otherwise I've really enjoyed the game