Sonic 1 for Game Gear and The Genesis : r/retrogaming

Hyperkin RetroN 5: HD Gaming Console for Game Boy Advance/ Game Boy Color/ Game Boy/ Super NES/ NES/ Super Famicom/ Famicom/ Genesis/ Mega Drive/ Sega Master System (Black) : Everything Else

Sonic the Hedgehog - 1st Run Retail — Gametrog

A Beginner's Guide to Retro Gaming Handhelds - Paste Magazine

Vintage Sega Genesis Sonic the Hedgehog 2 Tested Excellent - Israel

The Analogue Pocket, reviewed. Finally.

Sonic 1 for the Sega Master System is a lot of fun! 8-bit remixes of the original levels and new ones exclusive are pretty good and the music is not bad too.

Sonic the Hedgehog 3, Megadrive/Genesis

Play Game Gear Sonic The Hedgehog (World) (v1.1) Online in your browser

TurboGrafx-16 Mini review: Mostly best-in-class retro gaming, sometimes WTF

20 Best Sega Genesis Games Ever

All Analogue Pocket OpenFPGA Cores And Where To Download Them