A rapid whip-pan left: sleds race in parallel as Arthur's disc catches a sand lip and he tips off-balance into the dunes

Prompt

[CAM] Rapid whip-pan left -> [STATE IN] Sleds sliding parallel at high speed -> [ACT] Arthur's neon disc catches a hidden sand lip, pitching him sideways -> [STATE OUT] Arthur begins to tip off-balance into the sand -> [AUDIO] Sudden thud, loud rustle of sliding fabric