Good idea, but that's about it. Needs to be polished. Why don't you add [DEMO] at the end of the name?

i would have rated higher but i dont rate higher than a half star for demos...

A good concept, but it just throws you in to the game and explains thing as you go. And you can't see a lot of the things you need to jump through.

Decent for a demo, and a good concept, but it feels very unfinished. Some background music and textures would be nice. I saw a few submissions like this in the past week already.

Pretty cool idea, but nothing happens when you reach the exit. You should also add some instructions before starting the game ;)