Monday is the 25th anniversary of the original Game Boy's release in Japan. We've come a long way from that green and black screen. Whether you have fond memories playing Tetris, Pokémon, Mario and Luigi or Nintendogs, all of them were on some sort of Nintendo portable system.
Take a look back with us at the first giant Game Boy, and the numerous iterations that have come along since. Share your favorite Game Boy memories in the comments below.