Sonic Generations

Sonic Generations is an upcoming game set for December 31, 2011 (Official) for Microsoft's Xbox 360 and Sony's PlayStation 3. The game is made to celebrate Sonic The Hedgehog's 20th Anniversary of the series.

Plot
Sonic's universe is thrown into chaos when a mysterious new power (possibly Dr. Eggman) creates "time holes" which pull him and his friends back through time. As a result, he encounters some surprises from his past history including Classic Sonic, Sonic as he was in the past.

Now, Modern Sonic and Classic Sonic must defeat this strange new enemy, save their friends and find out who is really behind this diabolical deed.

So far, only Modern Sonic and Classic Sonic have been confirmed. Characters such as Tails, Knuckles, Shadow, Amy and Eggman have been hinted, the producers said "We will think about the game's cast, so please wait for it."

The writers for the story are credited as Ken Pontac and Warren Graff of Happy Tree Friends fame. They also worked on Sonic Colors and MadWorld.

Gameplay
The game features levels derived from 20 years of Sonic history, ranging from the Classic era, through the Dreamcast era, to the Modern era. Each level can be played with either Classic Sonic or Modern Sonic, each taking their own routes throughout the level. Classic Sonic's levels are strictly two dimensional side scrolling stages, using classic moves like the Spin Attack and the Spin Dash. Modern Sonic's levels, on the other hand, carry on the modern 2D/3D gameplay of recent titles such as Sonic Unleashed and Sonic Colors, featuring Homing Attacks and Speed Boosts. There is going to be a new interactive menu that allows for complete imersion into Sonic's universe, as you complete the game extras are unlocked such as favorite characters and hidden treasures.

Playable
1.) Sonic The Hedgehog (Classic and Modern)

Enemies
1.) Motobug

2.) Chopper (Gigantic and Normal)

3.) Crabmeat

Voice Actors
Even though no confirmed official list has been made Roger Craig Smith can be heard portraying modern Sonic in voice clips only.

Enviroment﻿s
1.) Green Hill (Sonic Generations)

Videos
Video:Sonic Generations - Teaser Trailer HD|Sonic Generations Teaser Trailer. Video:Sonic Generations Gameplay Trailer|A gameplay trailer. Video:Sonic Generations - Interview (Translated)  New Footage|Interview Video:Sonic Generations Extended gameplay footage|Green Hill Zone gameplay