Dr. Charles Hedgehog

Following the drastic alterations to reality on Mobius, Uncle Chuck ended up out in the field once again. Accompanied by Antoine, He and Muttski went Knothole to investigate the recent tremors. Sonic and Tails, who are looking for Antoine, comes across Chuck. The good doctor's greeting is interrupted by Sonic's joyful embrace, and the overjoyed hedgehog thinks how Sally no longer being a robot, Knothole not being destroyed and Uncle Chuck still being around are making him prefer the new universe to the old one. A surprised Chuck asks Sonic what's gotten into him, and he tearfully responds that he was just happy to see his uncle safe and sound. Chuck replies that no one will be safe if he can't figure out what has been causing the recent tremors, which he believes to be Eggman's doing. He has been collecting samples of some sort of purple energy that's been seeping out of the cracks in the earth, and requests NICOLE's assistance in analyzing the samples if she's free. The damaged supercomputer apologizes and says she is needed elsewhere, albeit with a garbled signal, prompting Chuck to ask about her condition. Tails says it's complicated, while Sonic replies that they need to see Antoine to help fix her, and Rotor said he was here. As if on cue, the new and improved Antoine walks up to them with a small Mobian dog in tow, and remarks that he was not expecting to see Sonic and Tails here. The two friends immediately hug their rejuvinated comrade, confusing him somewhat with their seemingly unwarranted elation.

Chuck once again asks Sonic if he's feeling okay, and the latter replies that he's just happy to see his buddy again, much to Antoine's confusion. At the same time, the Mobian dog is happy to see Sonic and Tails again, though they don't seem to recognize him. When he refers to himself as "The Mutt", a surprised Sonic suddenly asks if he is Muttski, to which he confirms, having been transformed from a regular dog to a full-blown Mobian dog known as Ben "Mutt" Muttski due to the effects of the Genesis Wave. Noticing Sonic and Tails' shock and confusion at the revelation, Antoine asks why they are acting so "funky", to which Chuck surmises that they might've had some spoiled chili dogs on the flight over. He then tells Sonic that he and Ben have work to do, and that they should leave with Antoine.