Really good music and feel for the game. I didn't notice any bugs which would undermine the game experience in the game play. And really good work with the level design, it must have been really hard to figure out the design since I was pulling my hair figuring the level :D, so great job with game..
One major issue I had is the game closes every time, I die and it got really annoying that I wanted to stop playing as it takes some time to get used to the movement. But then I started opening other doors when I was going to die and got around the issue so was able to finish the levels and it was satisfying when I finally reach the end.
And special mentions to the story board at the start, I really liked it...
Have a good day!! :D