The whole title is Operation Varth.
It has a typical cheesy storyline. Computers have taken over the
world and you have an old 4th generation (?) fighter ship that the
computers do not control. You need to destroy the computer through
30 levels of play. You have the option of playing with with a
shield (pods) that is fixed or "smart" (ie. they rotate ard your
ship to cover you from all angles).
You don't really get to see this game at the newer arcades
nowadays, though you mught get lucky at some older ones. 
