Free online · Plays in your browser · No plugin

Play Unfair Mario

Play Unfair Mario free online — the deviously hard, trap-filled Mario game, now running right in your browser with no Flash plugin required.

Loading Unfair Mario…

Starting the Flash emulator — this only takes a moment.

move · jump

You will die. A lot. That’s the whole point.

What is Unfair Mario?

Unfair Mario looks exactly like the classic platformer — until it isn’t. Nothing is what it appears: invisible blocks, hidden spikes, collapsing ground and booby traps everywhere. You’ll try to avoid them all and reach the final flag, and you’ll fail again and again in ways you never saw coming.

To beat it you have to be fearless. Get poked, prodded and dropped to your death, learn the trap, and try again. Best (or worst) of all, the game happily counts every single time you die. Frustrating? Absolutely. Weirdly addictive? Completely. Challenge a friend to see who racks up the higher death count.

Controls

  • Move left and right
  • Jump (time it carefully)

That’s all you get. The rest is pure trial, error and revenge.

About this site

Playunfairmario.net launched in October 2013 with one goal: give the deviously hard Unfair Mario a fair, friendly home online. The original ran on Flash — today it plays through the open-source Ruffle emulator, so it works in any modern browser with nothing to install. Have fun, and don’t take the deaths personally.