Super Mario Bros - Mrluigi5577s Levels 3 - Lost levels is a hack by MrLuigi5577.
This hack is harder than Mrluigi5577 levels 2. Levels which itself repeated: 1-2 - 5-2 (Sea), 2-3 - 7-3 (Desert), 3-3 - 6-3 (Islands), 2-4 - 6-4, 3-4 - 5-4 (Castles).
Worlds:
World 1 - Mushroom kingdom
World 2 - Desert 1
World 3 - Forest 1
World 4 - Night Land
World 5 - Bullet bills frenzy
World 6 - Forest 2
World 7 - Desert 2
World 8 - Bowser kingdom
Cancelling[]
MrLuigi5577 says that he gave up work on the hack; meanwhile he will work on Luigi Rescue Mario.