TailsDoll

TailsDoll is the altered version of Tails, much like Sonic.EXe. In the fangame of the second Sonic.EXe, it is revealed that the doll is a puppet rather than vessel. What actually happened was that Tails found a strange mirror, and upon investigation, get's transported into a nightmarish hell while his body proceeded to mutilate and morph into the latter entity, TailsDoll.