Zone 4 was once the premier fighting capital of the world where it held the famous Free Fighting Championships, the world's most popular fighting competition formed by the renowned martial arts legend known as Roddy Hart. Over the years, it attracted the fiercest and most dominant fighters from all over the globe, each hungry for blood, fame, and the recognition as the next top fighter in the world.

However, it also attracted some of the most corrupt and evil fighters who were willing to do just about whatever it takes to win. Soon, the FFC ran rampant with drug use, cheating, match-fixing, and gambling, leading to mysterious disappearances and the deaths of some of the world's top fighters.

Zone 4, once a proud destination for fair, unbiased competitive fighting quickly became a district overrun by the most corrupt fighters and gangs. But there are those who are banding together to fight back, to gain back the respected reputation that the district once had, and to restore peace in Zone 4.

'ZONE 4' is a fighting action game with RPG elements, plus a distinctive character and a simple OPERATION This feature casual fighting game. It provides a new user interface (UI) and action and enhance the immersive give a variety of content. Also, the help can greatly improve the tutorial novice users to easily add a starter quest commitment to the game in order to lower the barriers to entry.

Character 'ZONE 4' is largely divided into a strike series (Street) and catch series.

The basic method of combat 'ZONE4' is apply to conflicting relations system of rock-paper-scissors type. Strike series skills is strong and catching skills, good skills is catching on avoidance, evasion seems a strong appearance on strike series skills. If you only know well clearly contradictory relationship because the relationship between each skills as one, and everyone can enjoy a wide range of actions easily adapt to the fight.

'ZONE 4' powerful special skills are also implemented skills that allows you to flip the game at once in addition to general skills. In order to use the special skills gather the SP that can be acquired during combat, and for a time to use the special skills are invulnerable is not subject to damage from attack. Novice users can also enjoy the fun and easy battle because the level difference by using various special skills well, you can easily win users.