Mega Drive Review - Sonic the Hedgehog 2 (Consoles Plus, October 1992) - Sonic Retro

3D Sonic The Hedgehog 2 Review (3DS eShop)

Sonic the Hedgehog 2 (16-bit)

Mega Drive Review - Sonic the Hedgehog 2 (Consoles Plus, October 1992) - Sonic Retro

Sonic the Hedgehog 2 : Everything Else

Sonic 2 Retro Remix : Thorn : Free Download, Borrow, and Streaming : Internet Archive

Ranking Every Mainline Sonic The Hedgehog Game - Game Informer

Sonic the Hedgehog CD

Total 80 games built-in, plug & play on your TV 40 16-bit SEGA games, featuring: Sonic the Hedgehog, Ecco, Streets of Rage and Golden Axe; and 40

AtGames Sega Genesis Classic Game Console

Mega Drive Mini & Mega Drive Tower Mini - Hardware Review