The developer of Sonic Generations CD Key is Sonic Team and its publisher is Sega. It has been created for Xbox 360, MS Windows and PS 3. It is regarded to be a platform game. Dimps has created the game’s Nintendo 3DS version. In North America, Australia and Europe, it got launched in November 2011, and in Japan, in December 2011. It was available on PS Network for digital download on 2nd July 2012. On 16th October 2012, it was available on ‘Games on Demand’ service, as well as on Nintendo eShop. Subtitles were given to those released in Japan. It has been directed by Hiroshi Miyamoto and produced by Takashi Lizuka. The game has been written by Warren Graff and Ken Pontac and its artist is Sachiko Kawamura. It runs on Hedgehog Engine and is a single player game.
The gameplay requires the player to take control of the character ‘Sonic the Hedgehog’ in Modern and Classic forms, with the objective being to gather 7 Chaos Emeralds, uncover mystery behind a mysterious entity called Time Eater, to free friends. As on 11th May 2012, more than 1.85 million copies had been sold across the globe. Favorable reviews were received and level design and overall gameplay has been praised.