Hyper Sonic, the golden super form from Sonic 3 & Knuckles, is not featured in Sonic Generations. The game focuses on Sonic's classic and modern forms, with different gameplay and abilities for each.
Here are the playable forms in Sonic Generations:
* Classic Sonic: Plays with 2D platforming gameplay, similar to the Genesis games.
* Modern Sonic: Plays with 3D platforming and action gameplay, similar to the later Sonic games.
While the game does have a "Super Sonic" form for both Classic and Modern Sonic, it's activated by collecting enough Chaos Emeralds and is not the same as Hyper Sonic.