10 Mods That Add Sonic The Hedgehog ... it's taken a total of 14 people a whole decade to whip Sonic World DX into shape across its ... Sonic 1-2, Sonic CD, Knuckles Chaotix, Sonic Adventure 2.

Last fall, long-time Sonic producer Takashi Iizuka said that Sega didn’t have plans to create a standalone Chao game — but Sonic players are helping keep this piece of the game alive.