Sonic Drift 2
Casino Night is a racecourse in Sonic Drift 2. Casino Night is the fourth track of the Purple Grand Prix (Purple being the easiest of the three available tournaments), coming after Dark Valley 1 and before Desert Road 1. As with most other races in the 2nd Chaos Grand Prix, you have to complete three laps of the track to finish, and the fastest racer gets a Chaos Emerald.
Casino Night's track is littered with oddities; mini ramps that throw you up in the air, springs that aren't really springs (they're actually bumpers), and the strange reverse-spheres (later seen in Iron Ruin) that invert your controls. Most of the time, there is at least land on either side of the track, although there is one section where this is replaced by empty space - so you don't want to fall off.