Hi, congrats on your game! :) It took me way too long to realize what I was supposed to do on the first level xD But after that, I understood how the game is supposed to be played. I think a good addition to the game would be to include more introductory levels to better explain the mechanics.
If you have some spare time, please try out my game. It's a classic space shooter from the 80s but with a personal touch. Please leave your honest feedback. :)