Time to kill some Demons!!!
You are under attack from Demons that want nothing more than to kill you! How awesome is that? You fight it out with multiple crazy looking birds that shoot at you with lasers and if you get hit you have an almost nuclear explosion that brightens the screen and hurts your eyes. The birds die in a protesting cry only to be replaced by more.
As you go up in the levels you will get to birds that split apart and when you kill one of them the other will try to kill you via a suicide dive hoping to take you out. You need to have awesome reflexes to get passed these crazy birds and when you do you don't get to relax for everything begins to speed up even more until you think your system is going to blow.
The sounds and the graphics may not be as awesome as the ones that are out there today but this is a system I grew up on and let me tell you it is refreshing to go back to the old games and play them just as long as I did when I was a kid.