Moonfluid

The moon is bleeding, delay the inevitable. Made in 3 hours for a little jam with pals.
Use the mouse, click to fire a shotgun. 

shoot down spaceships to capture their spacemen. spacemen will naturally go to the closest leak to plug it. too much blood will give them BLOOD MADNESS, and they won't know friend from foe. You'll have to put them down in that case, but missing will just make more problems...