Back in high school they called me the trimp king, but this game's movement, it scares me.
So after the necessary tf2 and RTGame references we can come back to the review. I liked the idea, each door hold it's own secret world and such but one thing which annoyed me to the point of no longer enjoying the game is movement. Especially level 4 moving platforms and ice physics. I failed countless times hitting something in the air and stopping completely, sliding off the platform, hitting corner of the platform and flying over it and so on and so on. I think your really nice game is ruined by how player character (pc) moves. Normally platforers allow to change pc momentum and have mechanics like coyote time to help with jumping from point A to B but your project doesn't have them and because of that it really suffers. Even games like the first Mirrow's Edge, which have a really slow acceleration and have more fluid movement, have this kind of stuff just to be more enjoyable and controllable. If you want to stay with this kind of movement in the future try to analyse how eariler mentoned Mirrow's Edge handles movement and why it is engaging.
I am sorry but I can't think of anything more. One thing killed the fun for me. I believe the 2 day work time is to blame and I hope your next project will be better!