Once, the cloudy skies above this planet were filled with active gas mines and refineries connected by cable suspension bridges and pipelines. Now, everything has been abandoned, leaving floating junk to litter the choking atomsphere. Scrap-metal dealers fight each other over the wreckage, keeping it aloft with anti-gravity generators. The pilots will race through enormous air circulation tunnels and weave around gas storage tanks, and must be alert for gaps in the skyway.