Slugslinger

A brawling, swaggering braggart, claims he'll challenge anyone to a duel, but prefers sneaking up and shooting enemies in the back. When his ammunition runs out, so does his courage. Paired with Caliburst, one-time Nebulan leading actor who only does this for the money. As an automatic machine gun, Caliburst can shoot armor-piercing shells at 1200 rounds per minute. In jet mode, maximum speed: 2400 mph.

(Source: Wikipedia)