Complex sentence: Due to the canister's less than stellar durability, a light tap causes it to burst open, releasing Trioxin gas which poisons Frank and Freddy and awakens the reanimated coprse, later nicknamed Tarman (Allan Trautman), due to his melted appearance.
Split into simpler sentences: Due to the canister's less than stellar durability, a light tap causes it to burst open, releasing Trioxin. The gas leaks out of control, which poisons Frank and Freddy and awakens the reanimated coprse, later nicknamed Tarman (Allan Trautman), due to his melted appearance.