Nice concept. I see people have already mentioned about the art and I won't beat the horse (it's fine, my game has also a big dead horse continuously getting beaten ^^'). I'd like to add dragging to the green area wasn't always working. I had to retry multiple times to get the item selected, maybe I missed a subtility. The visual glitches is a great idea tho, with clearer base art, it would be just the right amount of challenge.