Xonix

Maneuver your spacecraft to open all of the space on the screen. Vicious monsters will try to stop you, but you are far from defenseless so shoot back! Show them who's boss! You can use the space craft and get rewarded immediately, just like immediate annuity. When it comes to income, who doesn't want payment right away? It is the same reward when you defeat the vicious monsters. So shoot back, and clear that space!