Super Mario Bros - Mrluigi5577 levels world 9 is a hack, which references to the original World 9 from Super Mario Bros.: The Lost Levels.
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<gallery> File:Kopia_Super_Mario_Bros_-_MrLuigi5577s_levels_(SMB_Hack)_-_World_9_001.png|Screen from new version. File:Super_Mario_Bros_-_MrLuigi5577s_levels_(SMB_Hack)_-_World_9_001.png|Screen from old version. File:Super_Mario_Bros_-_MrLuigi5577s_Levels_-_World_9_(SMB_Hack)_(New_Version) 001.png_|Screen from Jeansowaty's version. File:Super_Mario_Bros_-_MrLuigi5577s_Levels_-_World_9_(SMB_Hack)_(New_Version) 002.png|Screen Showed Warp zone to world 9