Star Wars Episode 0: The Requel
The methane-choked, high-gravity homeworld of the quadrupedal Dugs has recently been developed to be a source of cheap fuel. Mining has become so extensive that non-natives can get around in the atmosphere with only a minor breathing apparatus. One of the main hazards on Malastare is in areas where there are geological vents or in and near the vast swamplands where methane gathers, waiting to explode if ignited.
The Dugs themselves have taken up various forms of high-speed racing using liquid pressurized methane as a rocket-fuel. The danger of exploding is taken as part of the fun. Spectators just need to take care to prepare themselves for Malastare’s heavy gravity, nearly twice galactic standard.