Sonic Mania Dev on Origins of Easter Eggs, Sega References

Sonic Mania's director discusses how a bug led to a new ending for the game and why he didn't think a certain boss would make the cut.
How & Knuckles mode, Mean Bean Machine, and more came to be.

Sonic the Hedgehog - Wikipedia

Sonic Mania's Obscure Sega Easter Eggs - GameSpot

Sonic Mania/Hidden content - Sonic Retro

Sonic Mania Dev on Origins of Easter Eggs, Sega References - IGN

Video: Digital Foundry's Technical Analysis Of Sonic Origins

Sonic Mania's Rampant Easter Eggs Enhance The Experience - Siliconera

Can't believe this has to be said, but criticizing the references != Hating all of Frontiers writing. : r/SonicTheHedgehog

Sonic Mania/Revisional Differences - The Cutting Room Floor

Sonic CD - Wikipedia