The story is about the revenge of the mafia leader Maron whose wife was killed by the rival mafia gang. In order to retaliate, Maron went by himself into the base of his opponents and started an intense internecine strife. You have to assume to the role of Maron and make use of the familiar guns including Tommy gun, shotgun and dynamite to kill all your enemies. In addition, when you defeat your enemies, you will go into the next stage and can allocate your energy scores into four different special ability areas which will enhance your accuracy in shooting, maximum HP, health regeneration and money earning power. All these will help you to tackle with the enemies who are hard to deal with.