Hey I did something really similar! Cool to see another version of the idea. I wasn't sure if player bullets should hit the player ship and I ending up making it so you can damage yourself which means you have to be way more careful with placement. Not sure if it makes it more fun or not? Also I made the camera gradually zoom out as you get bigger which makes it easier to see what's going on. In this I ended up filling the screen quickly and then couldn't see what I was going to crash into :D