Did you remember the popular fangame-creepypasta of the PC port of the original game of Super Mario Bros (Renamed now to “Mario 85“)? Personally, I love it, and I made a mod that replaces the big Mario with the creepy Mario of that creepypasta. Joy making levels with this Mario version and make your own “creepy” game in Mario Maker! This mod is for “Super Mario bros 1” and the skin is obtained when you get the mushroom that makes you big
