Being very lazy,  this one was put together using something called the SEUCK (Shoot-Em-Up Construction Kit). This system allowed you to create games without using code! Unfortunately the easier thing get to program the more restrictive they become on what you can produce.

Basically the idea behind the game play is to shoot everything that moves to gain maximum points. 1 or 2 players can play simultaneously, both using joysticks. The game features an assortment of levels and alien craft. A few that I can remember were: Walking Sticks, Space Invaders and the USS Enterprise.