Interesting game, I had fun playing to the end!
For me, 5 stars are too few for the audio ** It's really amazing, i love the track and swapping between variations of the same music make me really feel like I'm swapping between dimensions!
Technically there are something that can be improved. Jumps doesn't feel very good and not all the special ability got the same level of polish. I found also some bugs, I got stucked behind the elevator and I had to restart the game. And for some reason the "credits" button open the option menu XD
For the desing part, it lack on clarity. It's hard to understand what to do and you have to guess what special abilities do. Maybe updating the game page with a brief descrition could help.
Overall you did a good job. Nice entry!