Two controls, and they do everything. On the ground, gas
accelerates and brake slows then reverses. In the air, gas leans
you back and brake leans you forward.
On the ground the throttle also holds your nose up and the
brake pulls it down, so the gas is how you ride out of a bad
landing rather than what finishes it.
Keyboard: → or D for gas, ← or A for brake.
On a phone: hold the right half of the screen for gas, the
left half for brake.
You crash by putting the rider's head on the ground. Landing
hard, bouncing and scraping are all free.
The clock never stops. Crashing puts you back at the last
checkpoint, and the time you lose is the whole penalty.
A completed flip takes 1.5 seconds off your time. Hold gas
from the lip and let go as the wheels come level. The tall ramps
and the jumps off a cliff are the ones with room for one; a low
fast kicker throws you further but gives you no time.
Finish a stage to open the next one. Gold, silver and bronze are
times, not scores.