DF Retro x Modern - Sonic Colors Ultimate: Every Console Version Tested
News - April, 2022
List of cameos and references, Sonic Wiki Zone
Game valuation and authentication MEGATHREAD : r/gamecollecting
Nintendo South China Morning Post
Sonic Boom: Rise of Lyric (Nintendo Wii U, 2014) for sale online
FLG Series: Cartoon Network Vs. Sega by MajorStarlight on DeviantArt
News - April, 2022
No new Sonic games this year. 2022 is the year of Sonic, everybody : r/SonicTheHedgehog
Sonic Central Game Announcements Leaks : r/GamingLeaksAndRumours