Super Mario
A year after Super Mario Bros., Nintendo put out this game. It was made for the Famicom Disk System. It uses a slightly different form of Super Mario Bros.'s engine, with different levels and new features including different graphics and the enemies acting a different way. This game is called Super Mario Bros. 2 in Japan; Nintendo of America originally thought this game was too hard and too much like the first to sell well in the United States. However, this game came in United States as part of Super Mario All-Stars, and recently, this game was on the Virtual Console on the Wii.