Hello! Thank you for playing!
Actually there is a game over and win state that shows your max score aswell as your current run score but when I built it on Unity it did not load properly. And too many bugs already...
I like your idea for the boss projectile but then it would get even harder when the second fase begins.
For the future I would love to give it a proper game loop (or at least fix the one I already have) and a graphic overhall with more Bosses so there is no end to the game, only the points you gather.