My best score is 2!
I'm going to break my hand trying to reach lower than that haha! Unfortunately with a mechanical keyboard, it's quite hard to press 2 keys at once without lifting a key already. Sad.
I like a lot of things from this game but let's go through the most major one:
1) You definitely have a very clear vision going into this. The mood was set VERY well and very zen-like, despite being one heck of a game. The sound effects are astonishingly well done - I honestly applaud you for that! With the space-ish theme you went for, the music was an EXCELLENT choice.
2) Very nice simple game loop with a score-chaser gameplay loop. Very well done. After a few playthrough, I can observe that it's actually quite possible to do a zero-mistake run. Very well done on your coding end to make it possible - although I havn't done any flawless run yet haha!
I don't have major gripes with the game, I think it's very well done!