Super Mario All Stars contains 4 games in one: Super Mario Bros., Super Mario Bros. 2, Super Mario Bros. 3, and The Lost Levels. These classics can now be put on one cartridge. In all these games graphics have been updated. For example, in Super Mario Bros. you can clearly see Super Mario Bros. 3 type graphics. I would have liked that they had not messed with history but it is little price to pay to enjoy these classics. This is a great buy if you have a Super Nintendo Entertainment System.