So it's been bothering me for a bit now. There is a certain Genesis game that I had years ago, it was pretty bad, but I still want to go back and see just how bad it was. From what I can recall, your goal in this game was to shoot and kill a different monster/alien in each level. You just used crosshairs on the screen to aim and shoot, sort of first person style but you moved the crosshairs like you would in a game like "Cabal".
 
It was really odd, you only fought one enemy per level, almost like a whole game of boss battles. Does anyone have any ideas?