Nicely done! Good call on separating the Game Gear titles too, as I know attempting to integrate them is like the leading cause of headaches in the world today. I am curious to see where you would have placed Sonic the Fighters, or rather to which timeline divide you were leaning toward. As we've speculated before, having Sonic the Fighters follow Sonic 4's second episode would make enough sense, although it is possible that it wouldn't transition perfectly into Adventure. Putting it after 3D Blast seems harmless enough to me however.