How to play Dirt Jumper

Dirt Jumper is a downhill dirt-jump line that keeps going until you crash. Your speed comes from pumping the rollers, the way riders do on a real pump track: push the bike down into the back side of each bump, then go light as the ground rises again. Carry that speed into the jumps, throw a trick in the air, and get the bike lined up with the landing before the wheels touch.

Before dropping in, choose Limestone Valley or Red Rock Canyon and pick your rider jersey and bike frame colors. Your choices are saved. Use Ride setup to start a new ride in another environment.

Controls

• ↓ or S: pump. Hold it while riding downhill. Let go at the bottom and stay off it uphill.
• ← → or A D: rotate. Hold to flip, tap to line up your landing.
• Hold Z to whip or C to tailwhip, and let go to straighten out.
• Space drops in, P or Esc pauses, R restarts and M mutes.
• On a phone or tablet, turn it sideways and use the buttons along the bottom: rotate left, rotate right, whip, tailwhip and pump.

Scoring

Timed pump releases earn 40 points; clean landings earn 50 and perfect landings 100. Distance also earns points. Consecutive good pumps and clean landings increase the distance bonus automatically, up to 80%. Tricks are banked when you land: a whip is worth 150, a tailwhip 300, and a backflip or frontflip 350. Mix different tricks into one jump and the total grows by half for each extra kind. A sketchy landing halves the trick bonus and costs you speed; a bad one ends the run.

Tips

• Pump the back side, release the face. Hold pump as the ground drops away and let go as it rises. A brief Too Early or Too Late message appears if you mistime the release. Well-timed releases earn the 40-point bonus and full uphill boost.
• Finish the trick before the ground. Landing mid-whip, mid-tailwhip or still spinning is a crash. Let go early, then tap rotate to match the slope.
• Match the landing, not the horizon. Each landing is graded on how closely the bike lines up with the slope under it: perfect, clean, sketchy or a crash.
• Don't case it. Coming up short and slamming into the face of the next jump too hard ends the run.
• Keep a steady rhythm. Good pumps and clean landings increase your distance bonus. Your banked points stay safe when a run ends.

Frequently asked

Is Dirt Jumper free? Yes. It runs in your browser with no download and no account.

Does it work on a phone? Yes, turned sideways. The on-screen buttons cover pumping, rotating, whips and tailwhips.

Does the line ever end? No. Choose the wooded Limestone Valley or the desert trails of Red Rock Canyon. Each environment has its own rhythm and named sections. The opening is always the same; later sections vary. Bigger gaps need speed built by pumping.

Is my best score saved? Yes. Your best run saves in your browser, and the best scores go on the public leaderboard under your first name.

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