http://www.youtube.com/watch?v=sWs8_...feature=relmfu Metal Sonic playable in episodes 1 and 2 if you get both episodes on the same console, and with 4 extra levels! Just a few things:
1. I wonder if playing as Metal Sonic on episode 1 changes the physics in anyway?
2. So if it's playable in episode 2, I guess you can't fight itself? Or maybe you fight Sonic and Tails? Nah, I can't think of a workaround, let Sega do that.
3. The trailer shows Metal Sonic being revived in Stardust Speedway in the
Bad Future, so this would prove that the true Sonic CD ending is the bad ending?