The shot is weird. The division into two branches of projectiles seems to be against intuitive, because it doesn't get where I really want to.
The commands of the "Asteroid" or "Old Resident Evil" ship make the ship difficult to control for not much.
I can totally ignore the waves of enemies, which are too numerous anyway to be shot (not counting the difficulty of aiming) and destroy the 9 planets.
The Earth's land is enough on its own without being defended.
A WASD displacement for the spacecraft would be appreciated.
A more intuitive shot on focus and faster projectiles (I can almost catch up with the ship's speed)
That alone would be very cool.
I finished the game on my 2 try.