|This article is about a/an episode in Hikari Sentai Maskman.|
|WARNING: This episode contains scenes of blood and graphic violence. Viewer discretion is advised!|
A Trap! The Sinking Giant Robo (罠! 沈む巨大ロボ Wana! Shizumu Kyodai Robo) is the twentieth episode of Hikari Sentai Maskman. It is the first episode of a three-part story arc that introduces the team's second mecha.
Momoko's pride as a kenpo teacher is tested by a powerful opponent set up by Anagmas as part of a scheme to defeat Maskman and Great Five.
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- Takeru (タケル): Ryousuke Kaizu (海津亮介 Kaidu Ryōsuke)
- Kenta (ケンタ): Koichi Kusakari (草刈滉一 Kusakari Kōichi)
- Akira (アキラ): Issei Hirota (広田一成 Hirota Issei)
- Haruka (ハルカ): Yuki Nagata (永田由紀 Nagata Yuki)
- Momoko (モモコ): Kanako Maeda (前田夏菜子 Maeda Kanako)
- Commander Sanjuurou Sugata (姿 三十郎 Sugata Sanjyurō): Hayato Tani (谷 隼人 Tani Hayato)
- Azuma: Reiko Shichida (七田玲子 Shichida Reiko)
- Earth Emperor Zeba (地帝王ゼーバ Chiteiō Zēba, Voice): Seizō Katō (加藤 精三 Katō Seizō)
- Earth Imperial Commander Baraba (地帝司令バラバ Chitei Shirei Baraba): Keijiro Shiga (志賀圭二郎 Shiga Keijirō)
- Earth Imperial Ninja Oyobu (地帝忍オヨブー Chiteinin Oyobū): Yoshinori Okamoto (岡本美登 oshinori Okamoto)
- Earth Imperial Prince Igam (地帝王子イガム Chiteiōshi Igamu): Mina Asami (浅見 美那 Asami Mina)
- Earth Imperial Ninja Fumin (地帝忍フーミン Chiteinin Fūmin): Kaori Kubota (久保田香織 Kubota Kaori)
- Earth Curiosities Beast Anagmas (地奇地奇獣アナグマス Chiki Chikijū Anagumasu, Voice): Takuzou Kamiyama (神山 卓三 Kamiyama Takuzō)
- Dokuro Doggler (ドクロドグラー Dokurodogurā) (Human Form): Junko Takazawa (高沢順子 Takazawa Junko)
- Child: Taro Kanasugi (金杉太郎 Kanasugi Tarō), Ryohei Iizuka (飯塚亮平 Iiduka Ryōhei), Maiko Okamoto (岡本まい子 Okamoto Maiko)
- Viewership: 10.4%
- This is the first time all five Maskman are not in Great Five, with Momoko disabled from her fight with Dokuro Doggler.
- In this episode, Momoko loses her aura power and her transformation as Pink Mask due to her severe injuries sustained in her fight against Dokuro Doggler.
- After the Great Five was sunk into the ground, Takeru and the group are seen barely escaping within their normal forms instead of their transformed state as Maskmen.
- During the second fight between Momoko and the human form of Dokuro Doggler, Kanako Maeda's (Momoko) stunt double is visible in the wide circling shot, which is cut in with close-ups of Kanako. The biggest telltale sign is the stunt actress having bangs, a hair styling choice never used by Momoko (or even by her actress, at least in Maskman or her guest role in Jetman as Kanna of the Back Dimension Dimensian Soldiers).
Hikari Sentai Maskman Volume 2 features episodes 11-20.