Other than “Atari Lynx” and “Turbo Express” — Sega Game Gear, debuted in October 1989 in Japan and was one of the first portable gaming systems to offer a backlit color display. The system had over 240 games released when production officially ceased in 1997. It was indeed superior to the Game Boy both graphically and ergonomically, however, its 3 hours battery time (compared to the Game Boy’s 10-35 hours) was a major weakness. The portable saw its first version of Sonic in 1991, which was to be the first of 10 Sonic titles on the system. Videos after the jump.
Sega Game Gear vs. Sony PSP
A Look Back, Sega Game Gear