Sonic classics getting delisted ahead of Sonic Origins

Sonic Origins Plus for Nintendo Switch - Nintendo Official Site

Sonic Origins/Sonic 3 & Knuckles - The Cutting Room Floor

PC / Computer - Sonic Origins - Sonic the Hedgehog - The Spriters Resource

Sonic Origins Plus: What's New? · Everything that's included

Sonic Origins Plus Impressions – Two Steps Forward, One Step Back - Game Informer

What games are included in Sonic Origins? - Dot Esports

Sonic Origins Game UI Database

Sonic Origins Trophies Revealed Ahead of Launch - Gameranx

Sonic Origins Trophy Guide & Roadmap

Sonic Origins cheats, level select, debug mode, Hidden Palace Zone