Cool game! I really wish I could hear the sound, since the rest of the game is great! Besides sound, the game is well polished graphically and is satisfying to play.
It has one main issue though that pervades throughout the game which is communicating things to the player. This appeared first when it asked me to choose which route I wanted to go on. It gave me a screen full of symbols which I had no idea what they meant. I also thought the game was broken because I was trying to click on the later nodes in the path since they were lighting up when I moused over them, but apparently I just had to start at the left side.
This issue also comes up when I get more equipment. There are just icons which I have no idea what they mean. Also, I found it weird that 'more frequent debris' came up as an upgrade, do I want debris? I thought it damaged me?
Overall this game is soo soo close to being a really fun game, the sprites, the gameplay, and the polish are all there! I feel like all the issues I listed above could be fixed with just a few tooltip text boxes.
Edit: Also I feel like the asteroid hitboxes were a little bit too unforgiving