Unlike Technos' subsequent game Double Dragon, the playing field is limited to one two-screen-wide area (a subway platform, a harbor, an alley, a parking lot and the hideout of a gang) and does not scroll continuously. Out of the four stages in the game, the first, second and third each begin with the player fighting a group made up of two different types of small fry enemies: one with fewer hit points and a stronger attack (usually armed with a weapon) and one with more hit points, but with a weaker attack and the ability to grab the player from behind, making him vulnerable to other enemies' attacks. When only three underlings remain (in any combination of the two) their boss will come in from the sidelines and join the fight. When the boss is defeated, any remaining enemies retreat off the bottom of the screen, and the stage ends. The second stage follows this same formula, but begins with a series of enemies riding motorcycles trying to run the player down, and brings in the normal enemies once the ...