3) Super Mario Bros (NES) - This is for me and many others was the first memorable video game experience. I didn't get to buy this game until most of you were playing your ps1/n64's but i remember going to arcade place where i played this and contra till i ran out of money. The core gameplay is so solid that the game can be still enjoyed today to this day and compete with the very top end of the market as seen from the sales of wii and ds iterations. An amazing game, so deep and yet so simple. The birth of character that would bring joy to millions of people.