Save planet Mobius from impending doom from the nefarious Ashura and Dr. Eggman and thwart the plans of the Brotherhood of Metallix. This mod is based on a darker perspective of the Sonic the Hedgehog universe. You will have to find objects to use, solve puzzles, and interact with a number of NPC characters to progress through the story. Experience Sonic Physics; run on walls, loops, corkscrews and on water!
Short version of the large video.
Don't watch this if you'll play it and don't want to be spoiled.