SMB Ultimate Edition

SMB Ultimate Edition is a fan-made ROM hack of the original Super Mario Bros. for the NES (Dendy).

The hack keeps the familiar mechanics but changes the levels, enemy placement and some graphics, making the game noticeably harder than the original. Mario runs, jumps, collects power-ups and heads for the flag at the end of each stage.

It is a challenge for experienced players who know the original by heart.