I've played and finished 8-4 with all characters. This is the order I finished them in. Please note that I started the stage with full firepower, and the classic settings were on. The hardest characters are (starting with the easiest): 8. Sophia 7. Samus 6. Ryu 5. Link 4. Bill 3. Mega Man 2. Mario 1. Simon Do not draw conclusions from this list, I might as well have finished with Mario last. I wish I had. OH WELL.