I like the mechanics of your game, it's a great idea to make use of two buttons and it works well with the astronaut thrusters in space. The are was really cohesive for that too. Might be because I haven't played a lot of rhythm games, but it was a bit tough to figure out when exactly to press the buttons. Good work!
feel free to check out my entry and leave any feedback: https://itch.io/jam/2buttonjam/rate/404017