Most Helpful Guy
I'd say "ruined" is maybe too strong of a word but 2D and 3D platformers tend to be wildly different kinds of games.
I still prefer 2D even when they're using 3D rasterization (ex: the new Super Mario games on Wii/DS). It's more fun to me when it's just left/right jump/attack sort of thing.
Most Helpful Girl
No, Sonic is life