|This article is about a/an episode in Battle Fever J.|
Chase the Mysterious Boat (謎のボートを追え Nazo no Bōto o Oe) is the twenty-eighth episode of Battle Fever J.
While on vacation in Kamakura, Shirou helps a boy whose father has been abducted by Egos to help them find Battle Fever's underwater base.
Shirou and the girls are vacationing in beautiful Kamakura, when Shirou encounteres a boy, Tetsuya, whose mother is being held captive by Egos and whose father is being forced to dive in the sea to search for Battle Fever’s secret base. Thinking that their secret operations have been exposed, Egos attacks Shirou and Maria. However, this prompts Shirou to earnestly investigate Tetsuya’s story. Finding Tetsuya’s family hostage, they submit to captivity. Luckily the others come to rescue them before Egos can drown them from the back of a speed boat.
- Masao Den (伝正夫 Den Masao): Kouki Tanioka (谷岡弘規 Tanioka Kōki)
- Kensaku Shiraishi (白石 謙作 Shiraishi Kensaku): Yukio Itou (伊藤幸雄 Itō Yukio)
- Kyousuke Shida (志田 京介 Shida Kyōsuke): Yuuhei Kurachi (倉知 雄平 Kurachi Yūhei)
- Shirou Akebono (曙四郎 Akebono Shirō): Kenji Ohba (大葉 健二 Ōba Kenji)
- Maria Nagisa (汀マリア Nagisa Maria): Naomi Hagi (萩奈穂美 Hagi Naomi)
- General Tetsuzan Kurama (倉間鉄山 Kurama Tetsuzan): Chiyonosuke Azuma (東千代之介 Azuma Chiyonosuke)
- Keiko Nakahara (中原ケイコ Nakahara Keiko): Noriko Hidaka (日高 のり子 Hidaka Noriko)
- Tomoko Ueno (上野トモコ Ueno Tomoko): Keiko Kanno (菅野啓子 Kanno Keiko)
- Masaru Nakahara (中原マサル Nakahara Masaru): Takumi Sato (佐藤たくみ Satō Takumi)
- Commander Hedder (ヘッダー指揮官 Heddā Shikikan): Masashi Ishibashi (石橋雅史 Ishibashi Masashi)
- Salomé (サロメ Sarome): Maki Ueda (マキ上田)
- Satan Egos (サタンエゴス Satan Egosu, Voice): Shōzō Iizuka (飯塚 昭三 Iizuka Shōzō)
- Jellyfish Urchin Monster (クラゲウニ怪人 Kurageuni Kaijin, Voice): Issei Masamune (政宗 一成 Masamune Issei)
- Shinya Nakai (中井 信也 Nakai Shinya): Chotaro Togin (当銀 長太郎 Tōgin Chōtarō)
- Tetsuya Nakai (中井 哲也 Nakai Tetsuya): Masaaki Ooguma (大熊 昌明 Ōguma Masaaki)
- Battle Japan: Kazuo Niibori
- Battle Cossack: Hirofumi Koga
- Battle France: Haruhiko Hashimoto
- Battle Kenya: Tsutomu Kitagawa
- Miss America: Eiko Onodera
- One of the mini-cars seen in this episode has a banner for Galaxy Express 999, the manga by Leiji Matsumoto which Toei worked on an anime for between 1978 and 1981.
Battle Fever J Volume 3 features episodes 23-33.