The GBC soon built up its own great software library before the Game Boy Advance came along in 2001. Many dual 'black cart' games would also play perfectly well on the original monochrome console, although the sexier Color-exclusive games came on clear cartridges which let you glimpse the board inside. GBC launched, appropriately, in a range of eye-catching colours and was fully backwards compatible with the existing Game Boy library. A colour update to the original DMG-001 - which had previously been revised in the smaller form of Game Boy Pocket - was a long time coming, but after nine years Game Boy Color finally gave handheld Nintendo gamers the proper upgrade they'd been waiting for.