You never fight any ruby skeleton and then you don't get any ruby and can't complete the game, right? I think bumping into a red skeleton make you fight an emerald one. If it's the case I think I've seen what the game has to offer.
There are several things I really like. First you took the time to put a real structure with 2 puzzles plus the event with the doors which close, it adds to the pacing, I really like that, we don't all take the time to do that. I also like the movement which basically goes as fast as you click, I also really like the art of the enemies. The combat system is perfectly fine in theory.
Also Hollywood clip ;) .
I think waiting through the enemy turn takes too long especially as your options are limited and you will end up just mashing a weapon button, which would not be a problem if fights took 3 seconds, it should haste when you mash the button and that would be fine.
Overall that was a cool entry, thanks for sharing.