Franco is a former super heavy kickboxing champion who was undefeated during his fighting career. He presumably retired to raise a family and became an airplane mechanic at South Town Airport to continue supporting them. In order to motivate the champ to fight in the tournament, Yamazaki kidnapped Franco's son, Junior. Franco reluctantly serves as his right-hand man until his son is returned to him after Yamazaki's defeat. He participates in the following tournament due to his family's encouragements to make a formal comeback for his fighting career.
Franco was introduced as a tragic 'hero' who was searching for his son and would not stop at any cost. After finding his son, he becomes comic relief used by SNK and his personality becomes somewhat goofy and very noisy.
- Energy Projectile - Franco can fire a projectile of energy that moves through the ground.
- Energy Attacks - Franco can deliver punches and kicks infused with energy.
- Fire Attacks - Franco can set his fists on fire.
- Hurricane Punch - Franco can surround his arm in a whirlwind and attack his opponent.
- Mechanical Engineering - Franco is a professional mechanical engineer, being a former airplane engineer.
- Power Lifting - is an accomplished bodybuilder able to lift vast amounts at a time.
Franco is a Kickboxer who uses a very unorthodox martial style. He is surprisingly fast for his size, and excels in high-low mixup games and chain combos.
- Shiroi Franco (White Franco) - Fatal Fury 3 - Real Bout Fatal Fury
- Goli Rock - Real Bout Fatal Fury Special - Real Bout Fatal Fury 2
- Fatal Fury 3: Road to the Final Victory
- Real Bout Fatal Fury
- Real Bout Fatal Fury Special
- Real Bout Fatal Fury 2: The Newcomers
- Real Bout Fatal Fury Special: Dominated Mind
- The King of Fighters '94: Rebout - background cameo in the Fatal Fury Team and Art of Fighting Team stages
- The King of Fighters 2002: Unlimited Match - background cameo in the Neo Geo World stage
- The King of Fighters 2003 - background cameo in the Fatal Fury Team's ending
- Days of Memories (fourth title) - passing mention by Terry
- Garou Densetsu The Legend of Wild Wolf
- Garou Densetsu Special
- He is nicknamed Mario by Japanese fans.