As children, my brother and I had very little in common. To be honest even as adults I don't know that we do now. We share the same parents (obviously), but we have different hobbies and interests, but one thing we had was games. We loved every type we could get our hands on.
Before having a home console, we would often steal my dad's work computer when he was done for the day to boot up King's Quest or any of the other Sierra Classics. Even at one player games we became a team since I kept pointing out things to try into the text system while my brother could read. I wish I could remember those days a bit better but I just remember having such an amazing time.
Things slowly started to change though when I was just a small kid. I remember us getting our Nintendo Entertainment system for Christmas. Before that I had seen Atari but never played it, I remember playing the previously mentioned Sierra games, and also remember playing some arcade games (damn allowance eaters heh) but the Nintendo was my first home gaming experience. My brother and I quickly put in the Super Mario/Duckhunt game and we were so excited. Then got killed by a Goomba within like - say 30 seconds. We continued to play for the rest of the day. It was a - pardon the pun - game changing day.