I've been playing FF6 on an emulator for all of two hours and I'm already in love with it... the non-obvious problem is now that I'm fighting Vargas, I seem to have run into some trouble! I hit A-left-right-left-A but it keeps telling me I'm putting the code in wrong (and that first A is to enter the "Blitz" command). Is there some trick to using his Blitzes? And will I ever need to use the dratted things again?

*is not excited about that prospect at present*