The DRW Acetylene Tank is a weapon in appearing in Dead Rising 2: Case Zero, Dead Rising 2, and Dead Rising 2: Case West. Acetylene is a colorless pungent-smelling hydrocarbon gas (C2H2), which burns with a bright flame that is used in welding.
When combined with the dolly, it bears a resemblance to the portable large propane tanks in Dead Rising. It can be found in locations where normal Propane Tanks are found. Zombies sometimes push the tank with a dolly.