While the Game Boy used a monochromatic display, both the Game Gear and Lynx had color displays. As these handheld releases were alongside the Sega v. Nintendo console war, they were also subject to heavy marketing and advertising to try to draw consumers.[1][59] However, the Game Boy ultimately won out in this battle, selling over 118 million units over its lifetime (including its future revisions) compared to 10 million for the Game Gear and 3 million for the Lynx. The Game Boy initially sold for $50 or more cheaper than its competitors, and had a larger library of games, including what is considered the handheld's killer app, Tetris, that drew non-gamers to purchase the handheld to play it.[60]