Bom-Gunman[1] is one of the World Bombers. He is described as being a cool, nihilistic "nice guy" with the quickest draw in Texas (0.2 seconds).[1]
In Super Bomberman - Panic Bomber W, he appears as the third boss of the game. Like the other World Bombers, he was brainwashed by Bagulor to cause chaos. After being defeated by Bomberman in the USA, he regained his consciousness.
In later appearances of the World Bombers, his spot is taken by Bomber Kid.