beevean:

On the Sonic Channel page there’s a new article with images never seen before.

“City” is pretty much unchanged, although I like how the bridge looks like a roller coaster, very Sonic-y.

On the other hand Casino Forest is almost unrecognizable, and looks much more colorful! While I definitely prefer this pallette over the ugly clash of dark green and bright purple and yellow, the cards motif remind me too much of Casino Street from Sonic 4.

Geez, Green Hill was dark. Straight up from Sonic CD! There are webcobs in the loop-de-loops!  And look at that haunted castle/prison! While Green Hill in game doesn’t really look that affected by Eggman’s rule, this version is a bit too on the nose for me, so I can see why they changed it.

I have no idea why they’re focusing on that little “air car”, but it looks cute. Metropolis is the prettiest stage in the game and I love the tiny details that went into it.

And finally not really concept art, just an image of the gorgeous stormy sea in Chemical Plant.