During the events of Sly Cooper and the Thievius Raccoonus, the Panda King, at the time a member of the Fiendish Five, constructed a massive stronghold in the Kunlun Mountains that served as a factory for his explosive fireworks, which he used in his extortion business. Sly Cooper traveled to China to confront the Panda King and put an end to his dastardly schemes, as well as get back the fourth section of the Thievius Raccoonus. Sly was victorious, the Panda King was arrested, and his stronghold was abandoned. The innocent villagers enjoyed some time of peace, while the gang spent some time in Hong Kong, before heading home.
In Sly 3: Honor Among Thieves, The Cooper Gang (consisting of Sly, Bentley, Murray, the Guru, and Penelope) needed a demolitions expert to infiltrate Kaine Island and enter the Cooper Vault. They had seen the magnificent fiery art of the Panda King in Sly's earlier fight with him. Even though the Panda King was a huge factor in Conner Cooper's death when he worked with the Fiendish Five, the Cooper Gang the gang travels to the Kunlun Mountains once more to meet up with the Panda King and forgave him. Sly agrees that the Panda King is needed, but is wary of his every move. Panda King's daughter, Jing King who was taken by General Tsao. Panda King said he would only join if Jing King was saved. General Tsao was forcing her to marry him somewhere in the Kunlun Mountains, that was in Tsao's fortress in the freezing grounds. Bentley and Sly went undercover as Tsao's wedding assistants. Bentley was the wedding planner and Sly was the photographer. Murray and Penelope had worked together to find a chunk of ice resting in a bay that was actually the Cooper Van, but frozen. Jing King was saved, the wedding was crashed, and Tsao was arrested. The Cooper Gang spent time in Shanghai afterwards, thinking how of a gang they are, before heading to Blood Bath Bay.