Franky is cyborg, reason why half of his body is artificial. Alter the Umi Ressha incident, Franky reconstructed his body using his knowledge, but he couldn’t reach his back, reason why this is the only nonmetallic part of his body and therefore his weakness.

Franky’s main fuel is cola, which he store in his belly refrigerator. When the cola is at his max capacity he becomes an unstoppable destructive weapon, but when he is short of cola or he has nothing, he became incapable to attack and he feels exhausted. With his hairdo we can measure how many cola is left, if it’s completely up it means that it’s to his max capacity and if it down to his eyes it means that he needs to refuel. Franky can use other drinks as fuel but their have different affects on him and his personality is altered.

Franky’s battle style is a mix of rude street fighting and the use of the hidden weapons in his body. As for as the street fighting, Franky is not very fast but he is strong, and thanks to his iron body, his fists are more destructive than a weapon and his body can resists the more lethal blows, even fire shots. As a cyborg, he can come with any trick from his body or he can use his shipwright abilities to create any weapon.