A mass prison breakout has occurred and the prison warden has been kidnapped in this sideways scrolling shoot-em-up from Konami. The player controls a lonely police officer whose job it is to kill the hordes of escaped convicts and, eventually, rescue the kidnapped warden. Each level also has a number of civilian hostages that also roam the levels and need to be rescued.

The player begins the game with only a pistol, but two extra weapons, in the form of a bazooka and a tear gas gun, can be collected. The 'Weapon Select' button cycles through the player's weapons via a display at the bottom of the screen. When the desired weapon is highlighted, pressing the Fire button will select and fire the desired weapon.

Hostages will randomly run across the screen and can be rescued by running into them. Should the player accidentally shoot a hostage, all extra weapons will be lost leaving only the pistol.