I, too, adored the gear fights. You can charge yourself for fuel. I'm not sure if that ever really added to the intensity for me. It may have in the back of my head. But most of the fights in the gears were just intense and dramatic and I loved it. Granted it was usually a gauntlet of boss fights, but it was nice that they were all story related and there was always something at stake. And that sure added to my enjoyment. I suppose if I ran out of fuel a lot or died a lot, it would have been a whole different story for me though