|This article is about a/an episode in Battle Fever J.|
A Big Counterattack on the Verge of Explosion (爆破寸前の大逆転 Bakuha Sunzen no Dai Gyakushū) is the forty-first episode of Battle Fever J.
Masaru befriends a giant mechanical doll being utilized by Egos to deceive and infiltrate Battle Fever's headquarters.
Masaru is caught in the middle of an armed bank robbery. The bank robbers discover a small mechanical doll in one of the boxes, that grows into a full sized person. He claims to be Kintaro, an android from the planet Ashigara, and saves Masaru. Naturally, Battle Fever is suspicious, but after an examination they cannot determine that he is from Egos. As he hangs out with Masaru, he paints manhole covers with paint he claims can be detected from his planet, but secretly he is marking the entrances to Battle Fever headquarters, and discretely attacks Battle Fever. However, as he spends time with Masaru, he begins to learn the meaning of friendship. Then, he stages the rescue of a little girl from Sarome who has her at gunpoint. This earns Battle Fever’s trust and they bring him into their base. But Jin, investigating the warehouse where the bank robbers found him, and discover that he is truly Egos. When his true nature is exposed, he threatens to blow up Battle Fevers’ base, but his friendship with Masaru make him reconsider. He leaves the base for an open battle with Battle Fever, and before he is destroyed, bids farewell to the friend that he has gained.
- Masao Den (伝正夫 Den Masao): Kouki Tanioka (谷岡弘規 Tanioka Kōki)
- Makoto Jin (神 誠 Jin Makoto): Daisuke Ban (伴大介 Ban Daisuke)
- 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)
- Mechanical Doll Monster (カラクリ怪人 Karakuri Kaijin, Voice): Masao Hosoi (細井 雅男 Hosoi Masao)
- Matsuno: Kazuyuki Hirai (平井一幸 Hirai Kazuyuki)
- Yabuki: Yusuke Mori (森 祐介 Mori Yūsuke)
- Battle Japan: Kazuo Niibori
- Battle Cossack: Hirofumi Koga
- Battle France: Haruhiko Hashimoto
- Battle Kenya: Tsutomu Kitagawa
- Miss America: Eiko Onodera
Battle Fever J Volume 4 features episodes 34-43.