Space Ace

Prototype of two player shoot'em up game with gravity. Player 1 is controlled by A,S,D,W and SHIFT. Player 2 is controlled by J,K,L,I and RETURN. Gravity is toggled on/off with G. Game is restarted with R.

About the cover image:

https://www.space.com/30405-dying-stars-rainbow-jets-hubble-video.html