Sonic The Hedgehog Ark AU

The following major characters are:

Shadow The Hedgehog. He is the only subject not made by the ARK science team, instead being made by Gerald Robotnik alone. He is the only one who isn't put through testing or the sort, his purpose being to help cure Maria Robotnik. He only consistently listens to Gerald or Maria. He is often stoic, his attitude varying greatly from the next subject created, Sonic. Not a ton is known, but it is believed he meets Sonic's speed and surpasses Amy's strength. He was also believed to be made in a different method from the others.

Sonic The Hedgehog. He's always running around, often playful around other test subjects, even Shadow, between testing procedures. He seems completely cooperative during testing with Tails, and not as much when with Amy, although still a high amount. Alone, it's around a 50/50 whether he'll listen or not. He is also the fastest of the trio, although his endurance can occasionally leave some to be desired, and his recklessness could be a flaw in his intended purpose as a war weapon.

Amy The Hedgehog. Created around the time of Sonic and having been kept separate for a good amount of time, she's surprisingly cooperative and kind. Despite this, she is exceedingly strong compared to Sonic and Tails, and becomes a force to be reckoned with with her hammer. Yet she remains quite sentimental, even if the scientists see it as a flaw, her purpose to be a war weapon. She seemed the most interested in Sonic during her time being separated. She is also proof that differing gender can occur in subjects, being the first female subject.

Tails The Fox. Being the newest creation, still seems to have superior intellect compared to the other subjects, being able to create powerful weapons from scrap. Although lacking in strength, he's seen as valuable to the scientists, his intellect allowing him to build better weapons than anyone on the ARK could have figured out. He is the most cooperative of the subjects, almost always listening. Although his purpose is a war weapon, he won't be just a super soldier in a traditional sense like Sonic and Amy. A major part of his cooperation seems to be from the morale boost that Sonic gives. He is also proof that making subjects based off of other animals is possible, and quite simple to do as well.