That was pretty confusing. Once you get to a certain part, you just turn into a red dot, and you're supposed to use the arrow keys, but there's no indication of that at all. I kept clicking around for a couple minutes trying to find out what I was supposed to do before I pressed an arrow on a whim. Some sort of a sign of that would be nice. And that part just requires you to walk down two hallways with no obstacles at all, so it might as well just not be there. I could understand if this is just a quick prototype to test some different concepts, but it definitely needs some more work.