Super Mario Bros. 3 - "Lost Levels" hack

Yep! The "Lost levels" of Mario 3! They are named like that because these levels actually ARE present in the original game, but they were never used (by certain reasons that I won&bother to explain here, lol). There are not too much, but some of them are quite interesting (and fun) to play. This version I have apparently is the last. Of course it is different than the previous ones (mainly the one where the world map is full of warp pipes that leads to those lost levels themselves) but I digress... Anyway, watch and enjoy!