Children began to love video games like Donkey Kong and Super Mario Bros. in 1985, when the Nintendo Entertainment System was introduced. More than 60 million units were sold in its first two years, and it paved the way for high-tech consoles of today like the Wii and Nintendo DS Lite. In addition, Game Boy (the first portable, handheld game system with interchangeable game paks) was born in 1989, enabling kids to entertain themselves on the go. We first featured NES in December 1985.