On the ground, you'll find mini neon palm trees, flowers, pillars, circular signs sometimes saying 'Casino' in the middle of them, and the names of Sonic and Miles in flashing lights, etc. Open areas that have alot of bumpers, flippers and slot machines form a kind of pinball table, supported by a much more minimalist, spiky-edged chunk of yellow and blue background, and there are alot of little flashing numbers, words and $ signs to boot.
The surface of most of the ground is an animated red neon road, sometimes held up a little way by thin blue bars, other times surrounded in little flashing decorations, around loops and curves. The amount of variety you'll see is incredible, and way too much to be detailed here (conveniently). Amongst the gold blocks there are colourful signs depicting arrows, flowers, bars and crazy shapes, and little panels that alternate between images of Sonic and star, and Tails and moon, respectively.
Most of the ground is of a gold colour, made up of many small blocks and square black gaps, possibly to indicate windows on buildings, but all over the place you'll also find all manner of flashing, neon decorations.
