In terms of gameplay, I know very well what I want Sonic to be. Generations was certainly great, but I like Lost World's idea of parkour, but maybe add some more in. Like, in the Sonic CD intro, Sonic is bouncing around, do something like that and mix it with the Unleashed/Generations style of gameplay. You can use the environment around you to move faster or avoid obstacles. I think that would be great. I would love to see a game like that. Or maybe the environment helps you get to different paths and you can get extra points for doing that. I just want to see that Sonic.