I have tried the demo and found it to be a very polished game (UI, animations, music, and sound effects).
One thing to note (personal opinion) is that it seemed a bit difficult to me at first to gather all the crystals and enter the gate on time. I have lost around 4-5 times (due to timeout or loosing all health) before achieving it.
Very good game! I like the rich story and the music tracks match perfectly with the game. I think the game has potential once polished (sprites/animations).
