Hammerhead

Hammerhead is one of the vehicles introduced in the original Twisted Metal. It appears in every Twisted Metal game, except forTwisted Metal 4 and Twisted Metal: Black. Hammerhead also appears in Twisted Metal (2012), albeit as a boss vehicle.
Hammerhead has always been a monster truck and, distinctively, has been driven by different contestants in every appearance it has made.
Hammerhead's Special Weapon always involved crushing opponents using its giant wheels.

Trivia

• In the original Twisted Metal, Hammerhead's color in the game in green, but in his lost ending, he is blue. Hammerhead could have possibly been colored blue in the beta because of this.
• Hammerhead, having two drivers in the first game, was the first vehicle to introduce a concept of having two drivers in a vehicle instead of one. This concept was later applied to Twisted Metal (2012), although the passengers acted as gunners.
• Hammerhead's original name in the twisted metal 2 beta was Deadhead.