Tough Guy is a fighting game similar to Street Fighter. Choose one fighter and travel all over the world to choose and challenge a wide variety of fighters. A unique feature of Tough Guy is that fighters have the ability to refill their health if they are injured. They also have super moves which can inflict a lot of damage on their opponent.

A life investment in intense training has transformed one man into a chiseled form of near perfection. The level of vitality flowing through his body is astounding. This man, Cula, is restless for lack of a suitable adversary.

Cula's obsession drove him to form the Fighting Titans organization. But even among its vast ranks exists no one at his level. This rich, forceful man has therefore decided that since he cannot find a worthy opponent, he will create one. No expense will be spared, no stone will be left unturned. Cula's devoted syndicate will provide the challenge he so desperately desires, no matter what it takes.

Through various means, honorable and impure, the Fighting Titans will bring together the world's greatest martial artists, to join Cula in the organization's most presitigious tournament to date. Who among them will prove to be a match for this godlike fighter? Cula's soul is ablaze with excitement as he impatiently awaits the battle he's been dreaming of for so long...