Fortunately for Sonic, it only sounded worse than it was, but Shadow would be unlikely to know that. He held a finger up to his companion to have him hang on a sec, then took a deep breath before the transformation struck him.

His world felt as if it were spinning, looping around much in a way like the game lol he felt when launching a solid spin attack at the steel-coated enemy. His thoughts swirled about as his skin bubbled, the neon pink glows of Dark Gaia swam through him like snakes in water, sometimes giving the occasional rise from blue waves to make a point of their presence. It wasn't long before he began to curl in on himself, the minor stress and discomfort of having his body distort and expand honing in on his nerves.

The snarls were escalating, the pins on his flesh wriggling and softening away...

Then he shouted in one singular, final burst of transformation.