A sole Barrel Cannon appears in Super Smash Flash 2 on the stageJungle Hijinx as a stage hazard. The Barrel Cannon slowly moves back and forth on top of the stage in an arched manner. Any character that comes in contact with the Barrel Cannon will by temporarily held inside of it, as it continues moving around. Pressing any button or waiting long enough will immediately fire the trapped character in whatever direction the Barrel is pointing, sending them reeling. Depending on the perspective, this can prove to be both a nuisance and an advantage, as the Barrel may hinder KO'ing an opponent increasing the survivability, in turn.
Donkey Kong jumps in the Barrel Cannon and blasting off the ground.