The epic anniversary issue you've been waiting for is finally here! Back in Sonic #50, Sonic managed to win against his arch-rival, Dr. Robotnik. In Sonic #175, the doctor got his revenge! Now they duel for the fate of the world! Will freedom come to Mobius? Or will the Eggman Empire rule forever more? Place your bets - but be ready for the startling conclusion! Don't miss this cranium-creasing, brain-bending, mind-blowing saga!