Great atmosphere, visual and sound design! Enjoyed the presentation a lot.
I agree with others that your game provides a ton of fun and shows great potential. I also agree that the most crucial improvement I find needed is in the difficulty curve. After "jump across" and "double jump across", the first real puzzle all of a sudden involves 6 whole platforms, in 3D space! That just totally caught me off guard and created more than a little frustration LOL
Had a lot of fun! Hope you can keep working on it and I think it will be great!