Super Mario Bros. Special is the official sequel to Super Mario Bros. It was made by Hudson Soft. The few people who have played it have had trouble with it because of how glitchy it is and how bad the control is. It has more enemies and power ups than the original. It even has a power up that lets Mario 'fly.' Luigi isn't a playable character, and it's not a side scroller. It has 32 levels, like the original.