Sonic the Hedgehog 2006 was released for the PlayStation 3 and Xbox 360 as the first “next gen” Sonic title, but the final game was much different from the original tech demo that was shown a year before. In the game you would have been able to turn into Super Sonic at any given time, but it was left unfinished: it’s called the rainbow gem and it was found by a hacker named Link. Also some concept arts show “Venice”, an early version of Silver.
Thanks to FullMetalMC, Shade3c & BowserEnemy for the contributions!
Images:
Videos:
Beta intro with different camera angles of the boat (at the beginning), different music, different voice acting for Elise, and it skips the part where Elise sees Soleanna in flames