Cool idea, great visual polish too, and it was fun and frantic to juggle pieces around. But I was frustrated by some of the UX design choices, which I think would be easy fixes. The biggest problem to me, by far, is the lack of visual clarity on the conveyor belts. It's too easy to miss if one conveyor is pointed the wrong way, which can easily cause a huge amount of trouble. Instead of being rectangles, the indicators on the conveyor belt should be wedge shaped, like such: > > > > >. That would make it instantly clear, and it would be immediately visually jarring if one of them was pointed in the wrong way. The other thing that bothered me, although it's much more minor, is that the mouse moved the camera, while also being used to drag things. In my opninion, it should really only drag the camera if you're, say, holding the middle mouse button. With these two small changes I think the game would've been a lot better. Still, I enjoyed the game despite these issues, hope you'll take my feedback to heart if you want to continue with this game!