So you’re an evil alien race who wants to conquer Earth. You have a spaceship that shoots freaking lazer beams. In the levels your goal is to kill all of the population in the city. Once you kill all the citizens and enemies you win that level. Now eventually you encounter tanks that fire bullets at you and move around. After a few more levels you encounter flying robots invented by human engineers. They give off streaks of energy that can hurt your health a lot.

I call this game Conquer The Planet. Now “all I need to do” is code and make graphics for it.