Sonic the Hedgehog has been that the variant gameplay styles found in recent 3D games have strayed from the formula of the original series. Specifically, the series' jump to 3D has been noted as a declining point. In late 2010, Sega delisted several below-average "Sonic" games, such as the notoriously disliked 2006 game "Sonic the Hedgehog", to increase the value of the "Sonic" brand after positive reviews for the games "" and "Sonic Colors". Sonic the Hedgehog Sonic the Hedgehog is a video game franchise produced by Sega centering on a series of high-speed platform games. Sonic, the protagonist, is an anthropomorphic blue
Sonic hedgehog B. Lewis, identified genes that control the segmentation pattern of the "Drosophila" embryos. The "hh" loss of function mutant phenotype causes the embryos to be covered with denticles, small pointy projections resembling the spines of a hedgehog. Investigations aimed at finding a "hedgehog" equivalent in vertebrates by Philip Ingham, Andrew P. McMahon, and Clifford Tabin, revealed three homologous genes. Two of these, "desert hedgehog" and "Indian hedgehog", were named for species of hedgehogs, while "sonic hedgehog" was named after Sonic the Hedgehog, the protagonist of the eponymous video game franchise. The name was devised by Robert Riddle, who was a