Name That Game

Ok. I am giving this game one more time on the merry go round. This is another image from the "Name that Game" post a few posts back. It's not Menudo the game or super c. It was made by Data East in 1987 as an arcade release originally. It later made it's way onto the NES in 1990. And, again, you have to collect six pieces of your gun to make it all powerful. It's a simple shooter, but quite satisfying. I like it anyway. So, what is the name of this game?