Pretty fun scoring game !
And i gotta say it is indeed impressive that you made this in just 10 hours O_o
I really like the precision of the controls with the fact you can have a slower movement speed on command with the shift key to navigate the tighter patterns.
The simple black and white aesthetic works well and keeps the game clean and readable even when showered in enemy shots, and to be honest the music is alright, plus the sound effects are actually funny cause i suppose you sounded the whole game by mouth XD
I'd say the only negative to me is, that it's a bit frustrating that when you game over you are force to quit the game and have to relaunch to retry, it would have been nice to have a retry button to retry the level without quitting.
Other than that, pretty solid especially for a solo effort made in such a short time.
Well done :)