Super Mario Bros. - Jeansowaty Levels: A Lost World was a hack which was dropped during developement of Super Mario Bros. - Jeansowaty Levels. This hack,would feature one world, being World 0. It would also feature new enemies like Green Goombas.


Jeansowaty says that the hack won't get released as he didn't liked the idea so much. Already, three hacks will exist, so the work on the hack won't get moved.