First off, this game is HUGE in terms of filesize. I'd look into audio compression if you get a chance. Usually for games you can compress the crap out of audio and the quality change is still imperceptible. Other than that the game plays really nicely, good work. 

I played a bit of your game, it really creates a sort of eerie style that combines combat, movement, and mazes, it's unique, I like it. It was a little frustrating to fall and immediately get hit by an enemy and have to restart, but I guess that was partially my fault :D.