super unique puzzle game with great level design and a fantastic difficulty curve. The controls are weird, and I've never really gotten used to them.
I recommend putting arrows on one end of each object to signify which is the out/clockwise direction, but there's no time limit, so it's not a big issue to to feel out the directions on each new level. I also recommend auto ending the level when a path is cleared, perhaps always having a projection going up, until the path is blocked.
the graphics/sound are a bit plain, other than that. The game is great! I look forward to a sequal