All the Vocaloid characters that I know, and yes Niku (the Sonic on the top left) is technically a vocaloid character because moribund is a vocaloid song.

Weird text from my friend....

2017 Rikka

My current AU family tree (again! This may lead into inconsistencies and retcons but is only for fun! Also some of my OCs are here, if you look close enough you can see who is an OC and who is not)

Fun little animation I made (made in Google slides BTW)

2017 Yuuta (long awaited sequel to 2017 Rikka)

My Sonic theory/AU idea: what if every Sonic continuity and version has actually been a single continuity of every Sonic being of a singular bloodline of different Sonic's (some inconsistencies and retcons but it's only for fun anyways)

Outcome Memories Juggernaut mode concept

My Sonic fighting game roster... Yes, I know only half of the roster is actually Sonic themed characters and that the final character is straight up a bird...

Kaiju Kolossos and Primal Tripwire variant concepts