Street Fighter Alpha/Gen

Gen is one of the Chinese opponents in the original Street Fighter. He is first introduced as a selectable character in Street Fighter Alpha 2. Gen is the only Street Fighter character that can change fighting styles in mid fight. He is known for his quote in English, spoken to a defeated opponent: "You are a big fool!" Incidentally, Gen says this before his final battle against M. Bison in Alpha 3.

Gen was a friend of Chun-Li's father, and he briefly trained her in her youth. Gen's Ansatsuken incorporates many Kung Fu styles, such as Mantis, Crane, Bear, and Tiger. Gen also owned a restaurant called Genhanten (which is used as one of the background in Pocket Fighter). A lot of signs can be seen in the background of Gen's stage in the original Street Fighter. Some of the signs include Southeast Asia Money Exchanger, Siu Wah Bargain (Bargain is misspelled as "Bargagain") Palace, Gou Norman French Cuisine, etc., which hints that his stage is in Hong Kong.

Gen entered the first World Warrior tournament to find worthy opponents. When he did not, he went back to the streets of China. Later, he found that he was dying from leukemia. Unwilling to go out on his back, he went out and fought members of Shadoloo, hoping to find a worthy foe to fight to the death, but he could not. When he heard of Akuma, he sought him out. When Akuma grabbed him with the Shun Goku Satsu, Gen emptied his heart and mind, and thus the fatal attack failed to kill him. When Gen struck Akuma with his Zan'ei shadow fist, Akuma was unaffected. As they battled, Akuma realized that Gen was ill, and broke off the fight.

Insulted, Gen pursued Akuma until they fought for the final time, to the death. When Gen and Akuma fight in Street Fighter Alpha 3, they perform their signature moves on each other before the fight begins, re-enacting the fight described above. At some point, Gen trained Yang and Yun Lee, the nephews of his friend Lee.