Sonic The Hedgehog 1 Para Android Oficial, v2.1.1

Sonic the Hedgehog 2 (2013), S2 2013

What's the very first Sonic game you've played : r/SonicTheHedgehog

Metal Sonic in Sonic the Hedgehog 2 1.1 : Free Download, Borrow, and Streaming : Internet Archive

Sonic The Hedgehog Fixed Version by Miles_Sebas_Prower - Game Jolt

Sonic The Hedgehog (2013): Episode Shadow [Sonic the Hedgehog (2013)] [Works In Progress]

Update] Sonic 1 and 2 Decomp Vita Port Crashing Fix is finally here! (And other smaller bug fixes) : r/vitahacks