Ah, ok. The generator would be in the gun. I imagine it charging up, then shooting out, where the energy beam splits up and encompasses the character, where it forms into the peices of the armor. At that point, the "flight shield" is no longer connected to the energy source, and degrades with usage and damage. I also have an idea where the shield can be overloaded with another energy type, and puts it in a kind of self-destruct chain reaction. Kind of like an energy bomb that destroys the shield, but leaves the player undamaged. Nice way to make an entrance, I'd say.