Released: August, 1989
Price at launch: $109
The same month as the Genesis launch, Nintendo released what would become the best-selling gaming system of all time — the hand-held Game Boy. Although it displayed only four shades of gray, the system shipped with a copy of the ultra-popular puzzler Tetris. The Game Boy evolved throughout the years, eventually incorporating color capabilities. Many companies would try, but no other portable even came close to matching Game Boy's success. Game Boy and Game Boy Color's combined lifetime sales reached 118.7 million worldwide, according to Nintendo's latest annual report.