I would say its an overall good game, certainly had me sucked in trying to get a higher score. For a game made as a tutorial, its fun, and has some good jams.
I do have some issues, though, such as the controls being a bit sticky and sometimes unresponsive. The glowing dots took most of my attention, felt like a bit too much.
If the game was cleaned up a bit more and had some textures added, I think it would be a fairly decent time waster.