this is actually really fun! the physics make it feel really interesting and unique, and the enemy types are really cool in their different behaviors, especially as combined with the physics. your bullets going up on the z-axis if you're pointing at a tree or cube is an odd little quirk, though it does make it possible to hit the bosses at all, though that also means you can't hit them if they're off the screen. but anyway, I really liked the little gameplay loop to see and beat all the enemy types. and I liked fast mode, and I liked when you got to a certain point you'd have enemies practically orbiting you elliptically. this is a really good first project!