Space Raiders

The playable characters include Justin (street teen), Ashley (fashion photographer) and Naji (police officer), and while they look different, all three play similarly. From a fixed height behind the character the player directs them to shoot at increasingly large waves of various aliens as they march down the street toward the character's position. Characters can move side-to-side as in the original arcade game, but also have limited movement both into and away from the screen. (wiki)