I did a basic one sitting playthrough (all emeralds, super emeralds, Sonic and tails mode). My final score was barely off 1 million. I love perfect bonuses. I ended with 43 lives and I forget how many continues (I can't be bothered to turn it on and check. =P ). The only times I died was from glitches, all of them were in super/hyper mode. Man, I love this game. I feel accomplished.