Play Project Super Mario Bros (SMB1 Hack) Online

Project Super Mario Bros is a hack of the original Super Mario Bros, which was released by Nintendo for the Nintendo Entertainment System in 1985. It reimagines the foundational platformer with custom level designs and visual changes, offering a fresh take on a familiar game without altering its core identity.

You control Mario as he runs and jumps through side scrolling stages, avoiding enemies and breaking blocks. The main goal remains to reach the flagpole at the end of each level, but the layouts are entirely new, demanding careful timing and memorization. Signature mechanics include screen by screen progression, collecting coins and power ups like the Super Mushroom and Fire Flower, and navigating pipes to access hidden areas. The pacing is brisk, and the difficulty can be unforgiving in later stages, testing even experienced players. It feels like rediscovering an old favorite through a slightly warped, challenging lens.