Takashi Iizuka, the producer for Sonic Generations, has said one of the biggest issues with making Sonic games is that fans of the old series are too hard to please.
“Our team are always trying to present new gameplay innovations so it’s hard to please fans who like the gameplay from the older games,”
This is certainly true but many fans would argue that it is because these “new gameplay innovations” have moved further and further away from what made the Sonic games so fun and others just weren’t executed right. Though you do have the fans who have really enjoyed the series after the original Genesis and Sega CD games; it really is all a matter of opinion.
He went on to say:
“However, we have included the older gameplay as part of Sonic’s 20th Anniversary, so we think the fans of the older games will enjoy it [Generations] as well. We are also looking into continuing the Sonic 4 series which was released on WiiWare, and we’ll keep developing titles so more fans will enjoy the games.”
There are the hardcore fans who care way too much about how Sonic’s legs move when running and how the physics react when he is rolling but it isn’t hard to please most of the fans who just want to a see a Sonic game go back to its roots. They just want to see Sonic and Tails run through a level at high speed and fight Robotnick in a flying machine at the end; plain and simple you just need clean mechanics and familiar game play. There would certainly be those who would argue that they just haven’t quiet hit that nail on the head yet though. Sonic Colors got favorable reviews from those who enjoy the Sonic Adventure game play and despite some issues people were very excited for Sonic 4, Sonic Generations just has to pull it all together.
Source: Official Nintendo Magazine