|Mighty the Armadillo/|
Mighty the Armadillo is an armadillo of the Sonic Series. He has made more appearances in the comics and only two appearnces in the games. He made an appearance in SegaSonic the Hedgehog, and in Knuckles Chaotic. Other than that, those were it.
According to Sonic Central, Sonic does not know the whereabouts of him, Ray the flying squirrel, Bean the dynamite, bark the polar bear, and Fang the Sniper; Explaining as to why they haven't made any appearances in a while.