haha, i like your commentary at the end. indeed its playing more like a tutorial level but it already works. maybe some moving entities could make it somehow more difficult?

Good use of the theme! The portal at the end was a little precise but I eventually got it.

Pretty neat little concept. True that it plays just like a little instruction, but I feel it'd need something more to the puzzle for it to be engaging for more leves. Perhaps some simple crate pushing puzzles? :)

The game doesn't start and shows several "vertex shader compile error" error messages. (Windows 8.1)

Doesn't start for me as well with vertex shader errors. Can't rate. (Windows 7 Ult 64 bit.)

This is a nice idea for a puzzler. It does need more objects to keep the game fresh. Good work!