took me a while to figure out why those "Far East Empire" (asian) people were killing me in one hit once in a while when i had the best armor in the game.
JDCAce its probably because you did it fast enough when you didn't get 100% orbs that you had a better score than when you took the time to not get hit. The game takes the highest overall score, not just the highest percentage of orbs.
just got to 47 gaston. and for those things you just keep the same general circular motion going... sway out of your path to get the green things, but keep going in a general circle in the same direction.