Momma Robotnik Returns Adventures of Sonic the Hedgehog : Season 3 Episode 21

Momma escapes again from the Mobius Home for Really Bizarre People, disowns Robotnik for failing to capture Sonic, then with the help of an obscure Mobius law, adopts Sonic! Sonic is miserable as a Cinderella hedgehog with Scratch and Grounder as the evil stepbots, till Robotnik and Coconuts find another obscure law which frees Sonic.