"It's the year 2191 and everything is run by a master computer. Some alien terrorists take over the master computer and Nova (our hero) must go and defeat the alien terrorists. There are six sectors you play through before you get to the main computer and you can pick which of the six sectors you want to play first."
-From NES Player.com
Some more info:
Taito was the publisher of this fine single player action title for the NES in 1991.
Labels: Name That Game