Sonic reached up to his mouth; rubbing and pulling at the solid piece that he used to be able to speak from, in a vain attempt to see if he could work it free... But, understandably, it did nothing. The roboticized hedgehog lowered his hands to his hips; as frustrated as he was dejected.
As long as he still had his wits about him, though, he was confident that he'd be able to fix this - Tails had experience returning folks to flesh and blood bodies before, and even if he couldn't properly communicate... He was sure that Tails was keen enough to figure the situation out for himself. Sonic reared back, in preparation to bolt off...
But as soon as he launched forward, one metal foot hit the ground, Sonic tipped forward, and landed face-first in the dirt. Perhaps the sole saving grace of his change was that he didn't feel himself faceplant - and as he pulled his face out of the dirt and saw a pretty solid impression of his face in it, he was thankful for that. Of course, this came on the heels of the revelation that the change had also robbed him of his speed. Sonic was... Hasty on a good day; and with such a drastic change having befallen him, he wasn't exactly at his most patient. Balling up a fist of impotent frustration, Sonic lifted himself off of the ground... And he began to walk back in the direction of town.
Sonic kept an even pace for a while, keeping his eyes ahead of him. He reached up and kept his hands on the back of his head, trying to relax as he made his way back... But eventually, he began to notice a change in his gait. He wasn't just... Walking, after a certain point - the way his hips were moving was... Weird. Looking down, Sonic's digital eyes fizzled as he beheld what had become of his legs - the metal seeming to have reshaped as he walked.
The initial change had maintained the shape and color of his iconic shoes on his robotic feet; but now, they seem to have shifted - tapering up and arching, with a pronounced heel now extending down from them. His lower legs remained slim, but the higher they rose, the more they broadened - before separating at a ball joint around his knee, and then broadening further around the hips, having become downright enviably curvy. The lithe hedgehog had become decidedly bottom-heavy, and after absorbing that shock... He recognized the familiar construction.
He had a lower half reminiscent of the cheerbot he'd destroyed previously. Sonic tried to pick up the pace, but his mechanical body remained as... Unwieldy and unfamiliar as it'd ever been. The most he could manage was a sultry strut that almost seemed built into him at this point; rolling his hips and flaunting his rear. A quick brush of his hand revealed that it, too, was a bit rounder than it'd been before - a perfect, heart-shaped dome of unyielding metal.
Sonic staggered as he felt his body contort again - this time focused around his midsection. He was paralyzed as the metal plates around his waist began to restrict, becoming waspisly-thin segments, while his chest ballooened outward - two shiny, metallic breasts becoming a permanent part of his chassis. A harsh static squawk blurted out of Sonic as he felt metal shift around his face - a pair of molded lips manifesting on his otherwise-featureless mouth and a set of sharp, molded eyelashes coming to frame his eyes.
His arms slimmed down some, but they seemed to be the least affected - though their chrome plates allowed him to get some means of examining the changes to his face. Whatever Eggman had done to him, it was turning him into some kind of bimbot - and after this, he was convinced that it wasn't going to end any time so-
"LET'S GO, EGGMAN~!"
Sonic whipped around, looking for the source of the noise - did one of those other cheerleaders follow him here? Oddly, he seemed to be alone, to his knowledge. It wasn't like the roboticization gave him extra scanners or anyth-
"E-G-G-M-A-N, WHAT'S THAT SPELL? EGGMAN~"
Sonic looked around again; the longer chant giving him a chance to follow the audio for longer... And, while he didn't find any sources around him... He did find where it was coming from. Sonic's digital eyes winced - the chants were coming from him. He couldn't speak; but that didn't mean he was entirely silent... It seems like the doctor had installed some canned voice lines into the cheerbots; all in the same peppy, feminine, annoyingly-saccharine tone.
"GO, EGGMAN, GO~!" As soon as this one began, Sonic started to place his hands over himself like he was fighting off a swarm of stinging insects - trying to find where to place his hands to muffle the cry. Not his mouth, his neck, his chest, or anywhere else seemed to be the source of the speaker... Or, he thought, there might be more than one. Great.
He realized he was wasting time trying to suppress that - time he now realized was of the essence. He resumed his sultry strut toward a cure - hoping he'd manage to get to help in time...