This is a nice, simple, and satisfying game! I did not make it to the magnet zombies that noticed others have mentioned (mostly because i died lol), having them come out earlier so player know there's more variety might be a good idea! There were some issues with UI scaling, when I wasn't full screen, a good portion of the text was cut off. I'm not sure exactly what the smash button did, as I had an easy enough time taking out waves with just spinning, but I didn't really need it, the spinning was satisfying enough on it's own. I imagine this would work pretty well on mobile, as the spinning would translate pretty easily. Well done!