Neat idea. I got stuck on some of the edges a few times and sometimes the 'Z' button to switch characters didn't seem to trigger.  If you work on the game further I could see it having a pretty interesting look after the placeholder art for the doors and switches/doors are replaced. 

I like the concpet of this game, being able to switch between two controllable characters is fun. Very simple though, I would love to have seen a 'Win' screen after each level though, because the game loops after completion. I'd love to see this game further refined and tweaked, I could see this being a fun little game!

Thank you for the submission!