I like how you can't move though the core and have to move around it, I'd like to see move obstacles for the player to move around and maybe some more movement options for the player to do that with. I like the two-enemy type, a lot and how bullets go through enemies but have limited range so you could add more guns that shoot differently. I think it would be cool if this was like the game snake were the longer you go on for the harder it gets while your progress is directly tied into the game getting harder. I can't see this game have levels, but it was nice of you to give the player a goal which gave allowed me to enjoy the detail and try to master something simple. The art is very nice although I think a super simple art style like this has a pretty high ceiling is terms of how crazy it can become while staying simple. Overall, I enjoyed this game and think you did a great job with it because it's really thought out. But yeah, it has a lot of space to grow! it could still be anything at this point