Super Sponge Bros.

Super Sponge Bros. is a ROM hack of the original Super Mario Bros., based on the outcast Mario brothers Sponge and Pretzel. The fangame was developed by an anonymous Vinesauce fan, and the game's files were given to Captain Southbird for distribution.

The ROM hack changes the titular Mario and Luigi into bootleg brothers Sponge and Pretzel. The brothers must traverse through a sad Mushroom Kingdom to save the princess by getting sad mushrooms and ninjastars. By the end of the game, it was revealed that the princess is already dead because Sponge was too late.