Very addictive. Possibly the most polished game in the jam.
I wish it listed the controls, because I noticed you could move Left/Right with the arrow keys, don't know if that's intended or a debug feature. I also wished that I understand how scoring worked, because the UI in top left and top right are emphasizing different things (how many you've collected VS have you collected them as a combo). If there is an ending I haven't seen it.