The Quadruped Armored Vehicle is a colossal boss robot that appears in Time Crisis 5. It surprised the V.S.S.E. agents after they cleared an alley of enemy soldiers by firing a railgun cannon. After the V.S.S.E. agents dodged the railgun beam, Wild Dog mocks at them before getting into the cockpit.
The quadruped armored vehicle has two tiers. The lower level has eight charging cannons firing projectiles, and three twin turrets. The main body of the quadruped armored vehicle is the second level, in which there are three twin turrets, 20 auto-repairing rocket launcher silos and a railgun cannon mounted on a turret. Its weakpoint is the energy cells on the turret which are protected by metal covers. There is one energy cell at the left and right sides of the turret, and three at the rear.
After the quadruped armored vehicle is destroyed in Stage 1 Area 3, another appears in Stage 3 Area 3 which ambushes the V.S.S.E agents while they are pursuing Wild Dog's escaping armored vehicle, forcing them to stop their motorbikes and dodge a railgun beam by driving in either left or right direction. Unlike the one in Stage 1 Area 3, destroying an energy cell at the left or right side of the turret destroys the quadruped armored vehicle.