Think this went a bit unnoticed in the community ports of the Sonic 1 2 And CD Decompilations For Wii U + Sonic 1 Forever And Sonic 2 Absolute Mods : r/WiiUHacks

Sonic the Hedgehog (lost build of cancelled Amiga port of Sega Genesis platformer; 1992) - The Lost Media Wiki

Corrupted graphics, misplaced objects · Issue #1 · cuckydev/SoniCPort · GitHub

Sonic CD + 1 + 2 Decomps for Wii U, Page 2

Sonic 1, 2, and CD Remake Decompilation, Page 9

Porting Sonic CD (2011) to the Wii U – Clownacy's Corner

The Android versions of Sonic 1 & 2 have been decompiled and can be played on PC, Page 4

Release][N3DS] Sonic 1 & 2 (2013) Decompilation port, Page 3

Sonic 1, 2, and CD Remake Decompilation, Page 9

Sonic 1-2 Decompilation Wii Port - The Independent Video Game Community

Sonic CD + 1 + 2 Decomps for Wii U - The Independent Video Game Community

The Void/Transcript, Sonic Wiki Zone

Release][N3DS] Sonic 1 & 2 (2013) Decompilation port

Remade Instruction Screen [Sonic CD (2011)] [Mods]

Sonic CD + 1 + 2 Decomps for Wii U - The Independent Video Game Community

I gonna talk about the ''Wii U/3DS Era'' of this franchise to ask a question Does Sonic Lost World & Sonic Boom series wasted potential..? : r/SonicTheHedgehog