Rev Up Those Sonic Cycles

[Azure-Tranquility]

Ice Cap is only popular because he has a KICKIN' RAD snowboard in that opening bit.

I would personally love to see:
Red Mountain (Underground) from SA1
Hang Castle from Heroes
Aquatic Base from 2006 (Which is the stage where you run through a waterfall canyon?)
Levitated Ruin from Secret Rings
Sweet Mountain from Colours

Unleashed is confirmed to be Spagonia, right? I'm okay with that; it's distinct enough in style from City Escape.

I would have wanted Spagonia just for the Day music.

And I could see Hang Castle, because it's halloween themed and dark. It's another type of level with little competition from other Sonic games. I think the only other level that is even remotely similar is that mine level from Sonic 2(Mystic Mine I think?).

I didn't even consider stages from Secret Rings or Black Knight. I always thought SEGA viewed those as spin-offs, and that the only levels that would be added would be from the "main" series.

I agree Speed Highway is the best stage in SA1, but that doesn't make it a good rep for SA1 in Generations.