Sound. Every bike has its own engine note, wind at speed, tires on the line, and the crash you can hear. Game Center. Real boards for the farthest run, top speed, every level, and today's race, with awards that show up in the Games app. Cloud save. Your garage, coins, and records follow you to a new phone. Share the wreck. After a crash, the last seven seconds go to your share sheet as a clip. This week's event. One hill for the whole week with one rule changed, on its own board. Plus a rating prompt that only asks after a good run, and the garage fits every screen without scrolling.

Nothing to scroll for. The garage fits on one screen on every iPhone and iPad, and the race sheet opens with the button where your thumb is. The helmet row says what it is: what's on your head, how many hits it still takes, and what the next helmet costs. Plus everything from 1.2: loops, helmets, today's race with a daily record, awards, the physics pass, speedometer, itemised tallies.

Loops. The line curls into full circles now. Every run meets one in the first minute; carry the speed and it pays out, come up short and the ring keeps what's left of you. Helmets. Half Shell, Full Face, Crash Cage. Bought with coins, worn on the rider's head, each takes one, two or three head hits before it comes off. Today's race. One course, one bike, the same for everyone until midnight. Timed to a finish line. Every day you ride is kept. Awards for the things you actually do: top speed, flip chains, loops, distance, crashes, race finishes. The bike stays on the ground over rough descents, settles for the landing when you leave it alone, and the upgrades do what the garage says. Speedometer on the dash. Tallies show where the coins came from.

Now riding on iPad. Full screen at every size, portrait or landscape. The Tumble Cap joins the trophy case: one crash has to carry you a hundred meters down the hill.