"Trials Dynamite Tumble"
Affect as much damage as you can for the driver!
All bumps and hits and longer jumps with the bike increase the damage. Dynamite explodes when the biker is near. Try to explode all of it for more points.
Speed up with Arrow up, break with Arrow down. Lean back and forward with Arrow left and right. Hit space to bail out. After fall nudge the driver with the Arrow keys.