Here's a BIG post for you guys on the status of the new Challenge Levels!
We're still working on the main "gimmick" of the challenge levels, but for now they're straight runways. We're thinking a mix of the Sonic Heroes Special Stages and the Mario Sunshine Floodless Levels.
This one will be available to play in next month's build. The entrance is hidden in Shiver Swamp.
I've also included concept art for different objects and things related to the levels, like some booster rings, a zipline, and the entrance portal you'll find in the main levels!