Days or even weeks after the release of Sonic Frontiers, or whatever comes after that, Sonic has no feeling of doing adventures and becomes a deadbeat, saying why would he even bother anymore. He ends up marrying Amy and starting up a meth lab business, used Tails' tails as his own toilet paper, breaks Master Emerald into pieces so he can snort the shizz out of them, and skins the Chao alive and turn them into fuzzy slippers.
Boy, has his life been turning upside-freakin-down!