Nintendo and Sega faced off again with the introduction of hand-held, mobile consoles such as Sega Game Gear and Nintendo Gameboy. The Game Gear system is much like the Sega Master system with a lower resolution screen, multiple accessories not seen in other systems (such as a television tuner to watch analog channels) and portability. Game Gear came with one excellent game, Sonic the Hedgehog, but also offered many other great titles