Hydra tank

The Hydra is an enemy created by Nefarious and encountered in the Krell valley. It is a bis red machine with three serpent-like heads that are capable of breathing fire. After a certain ammount of health has gone the robot crates a forcefield, at this time Ratchet must use the omniwrench to pull off a bolt connecting one of the heads to the body, when all three heads are removed, the creature explodes.