Sega Game Gear, Sonic Wiki Zone

The Sega Game Gear (ゲームギア, Gēmu Gia?) is a handheld video game console manufactured by Sega. It competed with Nintendo's Game Boy. Introduced in 1990 as a portable Sega Master System, it was in production from 1990 to 1997. The game Columns came bundled in with the Game Gear, with only six games released along side the initial launch. There were twelve Sonic games released for the system that have been ported to later games released by Sega, such as Sonic Adventure DX: Director's Cut, Sonic Gems

Sonic 2 in 1, Sonic Wiki Zone

Sky Base Zone - Sonic Retro

Sonic The Hedgehog Game Gear Bridge Zone HD by NuryRush on DeviantArt

Sonic the Hedgehog 2 (8-bit)

Sonic the Hedgehog Longplay (Sega Game Gear) [4K]

Sonic Origins Has Forgotten All of 8-Bit Sonic the Hedgehog History

Sonic the Hedgehog 2 (8-bit), Sonic Wiki Zone

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Sonic Mega Collection Plus - Sonic Wiki - Neoseeker

Sonic Mega Collection Plus — StrategyWiki