Platform(s) Released Chip unfortunately only appears in Sonic Unleashed, but throughout that game, he does everything he can to help Sonic save the world from Dark Gaia, an evil behemoth who was ...

Yes, that Ugly Sonic. The joke is that Chip and Dale run into Ugly Sonic at a convention, the version of Sonic that was the original CGI hedgehog in the first trailer for the blockbuster Sonic movie.