Sonic The Hedgehog 1 Para Android Oficial, v2.1.1

Sonic SMS Remake: Sonic 3: Timelines

Sonic 1 SMS Remake by CreativeAraya1 - Game Jolt

Sonic 2 Absolute

Sonic 1 and 2 3DS - GameBrew

Sonic the Hedgehog (2013) - The Cutting Room Floor

Sonic 1 (SEGA Forever) android version

Sonic 1 Almost Remastered [Sonic Mania] [Works In Progress]

Android) Obtaining the Data.rsdk for Sonic 1 & 2 [Sonic the Hedgehog (2013)] [Tutorials]

Custom / Edited - Sonic the Hedgehog Customs - Sonic 1 (2013) Custom Menu BG (EU/US/JP) - The Spriters Resource

Sonic the Hedgehog Forever, S1F