I find Blaze interesting because she's the only girl in the games who goes around with her crotch exposed, just like Sally from the cartoon.
Eggman's design is probably another effect of erasing the timeline. yknow, one of those kill a butterfly and damage the future radically things.
Oh, I see! So in the original timeline, Dr. Eggman looked more realistic throughout the entire series, but now with Solaris out of the picture, he's gotten extra fat and cartoony.
I like how the figure in the emblem doesn't look like Sonic.
I think what we're seeing is Sonic's head overlapping the circular part of the emblem, and a couple of rays of light appear to be creating an edge on the circle where there isn't one. So that's not a hat or someone else's head, it's just where the magical rays happened to be.