The Nintendo GameBoy is a handheld gaming console that was first released in 1989. It revolutionized the gaming industry by allowing users to play video games on the go. The GameBoy featured a monochrome screen and a simple button layout, making it easy to use and portable. It quickly became a cultural phenomenon, with popular games like Tetris and Super Mario Land captivating players of all ages. The GameBoy's success paved the way for future handheld gaming devices and solidified Nintendo's position as a leader in the gaming market.