Build the Power Racers and the Swinging Pendulum ramp obstacle then use the Pull Back Motor to fly the Racers through the Swinging Pendulum obstacle.
LEGO Racers: Desert Hammer (8496)
4 X LEGO Racers/World Racers Instruction Pamphlets 8122, 8221, 8231 and 8897
Lego Racers Racing Programme 3 & 4 + Lego Racers Drome Racers Rewards Card.
LEGO Star Wars: Desert Skiff & Sarlacc Pit (75396)