For 2010 it's going to be Project Needlemouse ( Sonic 4 )
Sonic the hedgehog is a video game to Xbox360 and Playstation3. the game is also called Sonic Next-Gen or Sonic 06 to not be mixed up with the first Sonic game.
the next sonic is sonic the burning underground
Has not been stated by SEGA yet.
Mario and sonic at the winter olimpyc games then sonic kart
Sonic Next Gen, but is given life by the chaos emeralds.
In the game Sonic The Hedgehog next gen. He mostly appears in multiplayer modes now.
No, Mario isn't on sonic the hedgehog game.
The next one will probably be Sonic and SEGA All-Stars Racing in early 2010.
Due to the poor reception of the first game and the storyline being erased, there most likely will not be a direct sequel to Sonic the Hedgehog Next Generation.
If you are referring to Sonic the Hedgehog 2006, then yes, it is the worst. If you are referring to Sonic the Hedgehog for Genesis, then no, as it is the game that started the series.
The newest game in the ever popular Sonic the Hedgehog series is Sonic Generations, with the next installment due to be released sometime in 2013.
Sonic the Hedgehog 2 (1992)