Juken Sentai Gekiranger: Nei-Nei! Hou-Hou! Hong Kong Decisive Battle

Movie Edition Juken Sentai Gekiranger: Nei-Nei! Hou-Hou! Hong Kong Decisive Battle (電影版 獣拳戦隊ゲキレンジャー ネイネイ!ホウホウ!香港大決戦) is the theatrical superhero film adaptation of the Super Sentai series' Juken Sentai Gekiranger television tokusatsu drama directed by Shōjirō Nakazawa and written by Naruhisa Arakawa. It premiered in Japanese theaters on August 4, 2007, with the Kamen Rider Series' film Kamen Rider Den-O: I'm Born!. The movie's title comes from the Cantonese pronunciation of Ni hao (Mandarin for "hello"), as Cantonese is the de facto dialect of Hong Kong.

Plot
While in the middle of fighting, the Gekirangers and Mere are teleported to Hong Kong, along with Rio and various other martial artists around the world. Just as Rio and Jyan were about to fight, they meet the mysterious Lao Fan before seeing others brought to the island as well. They all then meet Miranda, the secretary to Yang, a media mogul who brought them all together for the Kenkonitteki Martial Arts Tournament (乾坤一擲武術会) to prove who's the strongest of them all. The first round of fighting leaves the Gekirangers, their Rinjūken rivals, Lao, Barnard Koyama, and Big the Goto as the winners. At the banquet hall, Ran, Retu, Rio, and Mere meet Yang Lo himself while Jyan follow Lao Fan and learns she's actually a member of the Hong Kong police who is investigating Yang, who founded Mechung Fu and used his tournament to gather strongest fighters as part of his plan to rule the world, finding the ideal Ki he needs: from the Jūken users. Geki Blue, Geki Yellow, Rio, and Mere attempt to fight off Miranda as Yang takes his leave, finding Jyan and Lao in his base of operations before they restrained him. However, the Ki Miranda collected before she died transfers to Yang's computer, transforming Yang into a cyborg Beastman before he starts absorbing more Ki to become a supreme being. The Gekirangers battle Yang Lo, refusing to give up in spite of him being stronger than them. Evading his defeat, Yan activates his giant robot Mechannon to terrorize the city. When GekiTohja proves no match for Mechannon, Rio and Mere take offense to Yang's comments on the Jūken style and are forced to help the Gekirangers by summoning Rin Lion and Rin Chameleon to combine with GekiTohja to form GekiRinTohja to destroy Mechannon, killing Yang in the process. Once the fight is over, in spite of the Gekirangers' amazement at the power of the united Jūken schools, Rio takes his leave with Mere telling them that nothing changed between them. The next day, Lao thanks the Gekirangers as they were about to leave for Japan when Miki, Natsume, and Xia Fu arrive for a vacation in Hong Kong.

From series

 * Jyan Kandou (漢堂 ジャン) / Geki Red (ゲキレッド)
 * Ran Uzaki (宇崎 ラン) / Geki Yellow (ゲキイエロー)
 * Retsu Fukami (深見 レツ) / Geki Blue (ゲキブルー)
 * Master Xia Fu (マスター・シャーフー)
 * Miki Masaki (真咲 美希)
 * Natsume Masaki (真咲 なつめ)
 * Rio (理央) / Black Lion Rio (黒獅子リオ)
 * Mere (メレ)
 * Bae (バエ)

Film only

 * Hong Kong Interpol Officer Lao Fan (香港国際警察ラオファン): A local Interpol officer who meets the Gekirangers, Rio, and Mere on Yan's island where she is trying to discover Yan's plans. She uses nunchaku to fight, like Jyan.

Mechung Fu
Practitioners of Mechung Fu (銘功夫（メカンフー）) are composed of robots with the exception of their founder Yang, who claims his creation is superior to Jūken.
 * Hong Kong Media King Yang (香港のメディア王ヤン): Founder of Mechung Fu and master of Mechung Fu Antlion-Ken (銘功夫アントライオン拳). He uses his position to hide his true intent: gathering the Qi of the fighters as part of his plan to become the strongest being and rule the world. He succeeds and becomes a cyborg Beastman as a result. His fighting style includes Sand Castle (砂楼閣), creating a sandpit to drag his opponents into. He ends up dying in Mechanon when it was destroyed by GekiRinTohja.
 * Yang's Secretary Miranda (ヤンの秘書ミランダ): Yang's assistant who is actually a Machine-Man that mastered the Mechung Fu Sea Anemone-Ken (銘功夫シーアネモネ拳), able to use her Petal Missile (花弁ミサイル) for offense and to find martial artists to bring to Yang. Form there, she uses her Super Absorbing Qi (超吸気) to drain her opponents dry of their qi, to power Yang's transformation, getting the last amount from Rio as he killed her.
 * Machine-Men (機械人): Robots created by Yang.
 * Mechannon (銘観音（メカンノン）): The giant antlion robot piloted by Yang, hidden in plain sight as stone statue of Guan Yin. Mechung Drop (銘観落とし) and Mechung Violent Wind Slash (銘観烈風斬) are used before GekiRinTohja scrapped it.

Cast

 * Jyan Kandou/Geki Red: Hiroki Suzuki (鈴木 裕樹)
 * Ran Uzaki/Geki Yellow: Mina Fukui (福井 未菜)
 * Retu Fukami/Geki Blue: Manpei Takagi (高木 万平)
 * Xia Fu (Voice): Ichirō Nagai (永井 一郎)
 * Miki Masaki: Kazue Itoh (伊藤 かずえ)
 * Natsume Masaki: Sakina Kuwae (桑江 咲菜)
 * Rio: Hirofumi Araki (荒木 宏文)
 * Mere: Yuka Hirata (平田 裕香)
 * Bae (Voice): Akira Ishida (石田 彰)
 * Lao Fan: Mayumi Ono (小野 真弓)
 * Miranda: Yinling (インリン・オブ・ジョイトイ)
 * Yang: Masashi Ishibashi (石橋 雅史)
 * Narrator: Kei Grant (ケイ・グラント)