Nice idea. I must admit the best part of for me was the main menu and intro. Very atmospheric. The mix of styles of pixel art with hand drawn character is a bit odd. Would be cool if one reality was pixel and the other hand drawn assets. I felt lost in the corridors. Not in a good way like feeling lost in space but just because most parts of the corridor looks the same and after switching characters you need to remember to run in the other direction - or flip you whole display.
If you feel like it, leave me a rating and comment as well :)