Its overworld sprite resembles a fire, and its in-battle appearance is that of a drowsy gas pump. It often hangs around Enraged Fire Plugs, who share the same overworld sprite.
The Robo-Pump has high offense and defense, and will spend the first few turns counting down to a bomb toss, which deals moderate-to-high explosive damage. It can also "replenish a fuel supply", which works much like Lifeup γ. Robo-Pumps waste turns saying "tick-tock". When defeated, it occasionally drops a Super Bomb.