Play Project Super Mario Bros (SMB1 Hack) Online

Game Overview

Project Super Mario Bros (SMB1 Hack) is one of those rom hacks that feels familiar but keeps throwing curveballs. You start running and jumping like normal, but then the level design starts messing with you—hidden blocks where they shouldn’t be, enemies placed just awkwardly enough to trip you up.

The visuals are tweaked just enough to feel fresh without losing that classic NES look. Some of the new challenges feel brutal in a way the original never was, especially if you’re used to the rhythm of vanilla SMB1. It’s not unfair, but it definitely punishes autopilot.

If you’ve played the original to death, Project Super Mario Bros (SMB1 Hack) gives you a reason to pay attention again. Just don’t expect muscle memory to save you.