Hahah, excellent work! Very fun and cute game!
I really enjoyed the whole vibe of the game, and that you kept it nice and short and snappy. A small piece of feedback: I think it would be beneficial to have a more obvious visual indicator of the point around which you're meant to circle, or otherwise change how the spins are counted so that the cursor can go in circles anywhere? Without the guide, it seems like it's just a speed management game, but then you'll occasionally slip your mouse over a non-obvious point in the screen and it won't count as a spin. It is okay for it to be both a speed management and control precision game -- in fact I think that's a really cool game design choice, forcing the players to balance both -- but I think the requirement and visual feedback of the latter should to be communicated back to the player as excellently as you've done so for the former. Maybe an inner and outer ring that the mouse needs to stay within? Anyway. Sorry -- that was a really length paragraph for what is really a tiny gripe. It did not really both me that much!
On the whole, you've done great work here, awesome job!!