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 Chaos, Sonic Wiki Zone

Sonic the Hedgehog - Wikipedia

Sonic Frontiers - Wikipedia

List of Game Gear games - Wikipedia

Sonic Chaos, Sonic Wiki Zone

Sega Game Gear, Sonic Wiki Zone

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

Sonic Blast — StrategyWiki Strategy guide and game reference wiki

Sonic Drift 2 - Sonic Wiki - Neoseeker

Sonic the Hedgehog Triple Trouble, Sonic Wiki Zone