You are tasked with taking down Gangster Alley , a notorious gang led by Chicago Joe, who has taken hostages in an apartment building. Your mission is to eliminate any gang member without harming innocents, while avoiding Nitro Ed, who frequently throws hand grenades.
The gameplay involves navigating the rooftops using the joystick to aim at and shoot gangsters. You must be strategic with your ammo, as it is limited, and take out Nitro Ed to disarm him before he can throw a grenade. Each gangster has a value, increasing by $10 for each level completed, and you earn money for completing levels and having remaining ammo.
The game consists of six levels, including a nighttime level where you must fire one bullet to light up the windows; failing to do so will cause them to darken again. Be cautious not to harm innocents, as this results in significant loss of progress. You start with four bulletproof vests (lives) and can earn an additional vest for $5000.