Games like Space Gray X

Space Gray X is a side-scrolling bullet-hell action game where you battle alien invaders, starting from Earth and advancing into space, unlocking advanced aircraft to aid your mission.

Space Gray X is a side-scrolling bullet-hell action game where you battle alien invaders, starting from Earth and advancing into space, unlocking advanced aircraft to aid your mission.
Picked to match Space Gray X on gameplay, themes, and feel.