Project: Hedgehog Both Shadow and Sonic were "born" on the Space Colony ARK as projects/experiments. They were meant to be used for an unknown reason and were not to show emotion, as it would mess with the tests. But soon, these specimens find their unknown feelings... but for each other. But before they can figure this puzzle of feelings out, they must save humanity... and that may lead to one of their fates...

[Boom Universe] When Shadow learns that Knuckles has a crush on him, he decides to use that to find Team Sonic's weaknesses. What happens when Shadow starts to like how Knuckles treats him? [Knuxadow]

It was a normal day for sonic, till he got hit with a laser gun and turned into....a....toddler? Now tails need to make a machine to change him back, but who will take care of sonic, well the only other hedgehog able to keep up with him....yes shadow. Come read the adventure of sonic and shadow and there brotherly bond. Will sonic survive?