This article is about a/an ranger in Battle Fever J.
"Battle Japan!"
―Battle Japan's roll call[src]

Masao Den (伝正夫 Den Masao) is Battle Japan (バトルジャパン Batoru Japan) of Battle Fever J. He is a former National Defense Ministry officer.


Battle Fever

He is good at judo and karate. He is armed with a spear. He does a kung fu dance.

Sun Vulcan


to be added


Battle Fever (Turboranger special)

Battle Fever come to cheer on the Turborangers.

Masao and his team joined up with the other nine Sentai to stand behind the newest Sentai, the Turborangers, as they faced off against the Hundred Boma Tribes. Counting on You! Turboranger

Gaoranger vs. Super Sentai

Battle Japan Gaoranger vs. Super Sentai

Battle Japan in Gaoranger vs. Super Sentai.

Battle Japan is among the Sentai warriors seen in clips when Daimon Tatsumi (GoYellow) lectured Kai Samezu (GaoBlue) about the past Sentai technical warriors and their fighting spirit.

Led by his Liveman successor Red Falcon, he appeared as one of 24 previous Red Rangers in Gaoranger vs. Super Sentai together with fellow Red Rangers from his predecessors AkaRanger and Spade Ace to his successors from DenziRed to TimeRed. Hyakujuu Sentai Gaoranger vs. Super Sentai


Legend War

Years later, Den fought alongside not only his own team, but every single Sentai ranger in existence, against the Empire of Zangyack when it attacked the Earth in the Great Legend War. After fighting against hundreds of Gormin and their Zgormin commanders. Kaijou noticed the fleet moving towards them, he gathered all the Rangers together and gave them the order to sacrifice their powers to wipe out the first invasion's armada. The Battle Japan powers are later utilized by Captain Marvelous via the Ranger Keys. Ep. 1: The Space Pirates Appear Gokaiger Goseiger Super Sentai 199 Hero Great Battle

Farewell Space Pirates

After the Gokaigers defeated the second Zangyack invasion, Marvelous returned the Ranger Keys to the 34 Super Sentai, it is assumed Masao and his team have their powers back. Final Ep.: Farewell Space Pirates

Super Hero Taisen

Dimensional wall - Sun Vulcan, Battle Fever, JAKQ, Denziman

Battle Fever, alongside Sun Vulcan, J.A.K.Q., and the Denzimen, emerge through a dimensional wall.

Masao, alongside his team, among the majority of the Super Sentai heroes, was caught up in the "Super Hero Taisen" incident which eventually resulted in the Super Sentai teams and Kamen Riders joining forces to defeat both Dai-Zangyack and Dai-Shocker. During the final battle, he is seen fighting the Dai-Shocker footsoldiers, the chaps and shocker combatman. Kamen Rider × Super Sentai: Super Hero Taisen

Zyuohger vs. Ninninger

Zyuohger vs Ninninger Battle Japan

Battle Japan among the 38 Red warriors.

All 40 Super Sentais

The first 38 Sentai projected into Wild Tousai Shuriken King.

Battle Japan appeared as part of a conference of the first 38 Reds led by Red Falcon, whom addressed the Ninningers and Zyuohgers as the greater Super Sentai pantheon intervened to save them from defeat at the hands of the titanic Gillmarda. Empowering the Combination Nin Shuriken to form Wild Tousai Shuriken King, the first 38 Super Sentai further imbued their successors with the power to perform the Zyuoh Ninnin Super Sentai Burst, destroying Gillmarda with the combined power of all 40 Super Sentai. Doubutsu Sentai Zyuohger vs. Ninninger: Message from the Future from Super Sentai

Chou Super Hero Taisen

Battle Japan fights as part of the Super Sentai Red Warrior Team, engaging Kamen Rider Den-O Rod FormIcon-crosswiki. Kamen Rider × Super Sentai: Chou Super Hero Taisen


Japan Flag

Super Sentai Strongest Battle

Masao joined the Super Sentai Strongest Battle as a member of Leader Team. It’s unknown whether he participated in any of the matches, but his team lost the third round against the Martial Artist Team.


Stage Show appearances

Battle Fever J Stage Show at 3 Heroes Korakuen Yuenchi

In a stage show where the Battle Fever J are seen fighting Secret Society Egos, Japanese Spider-ManIcon-crosswiki and Ultraman JoneusIcon-crosswiki arrive to assist the Battle Fever J.

Battle Fever J Stage Show at Super Hero Korakuen Yuenchi

In a stage show where the Battle Fever J are seen fighting Secret Society Egos, Kamen Rider StrongerIcon-crosswiki, Kamen Rider V3Icon-crosswiki, Japanese Spider-ManIcon-crosswiki, Ultraman JoneusIcon-crosswiki and Doreamon arrive to assist the Battle Fever J.

Denziman Stage Show at Super Hero Korakuen Yuenchi

In a stage show where the Denziman are seen fighting Vader Clan, Battle Japan, Battle Kenya, Kamen Rider Super-1Icon-crosswiki, Kamen Rider StrongerIcon-crosswiki, Kamen Rider V3Icon-crosswiki, Japanese Spider-ManIcon-crosswiki, and Ultraman JoneusIcon-crosswiki arrive to assist the Denziman.

Video game appearances

Super Sentai Battle: Dice-O

Battle Japan (Dice-O)

Battle Japan as depicted in Super Sentai Battle: Dice-O.

  • Profile:
Masao Den/Battle Japan: A leader who possesses a genius-like intellect. A spear specialist. He fights using a Kung-Fu dance that is made up of karate and kung-fu.

Super Sentai Battle Base

Battle Japan is among the vast pantheon of Rangers which are available in the mobile game Super Sentai Battle Base.

Super Sentai Legend Wars

Battle Fever J in Super Sentai Legacy Wars

Battle Fever as seen in Super Sentai Legend Wars.

Battle Japan appears with his team among all Sentai in the mobile game Super Sentai Legend Wars.


  • to be added

Battle Japan


Battle Japan Suit




Battle Japan wears a white suit with a red stripe that runs along the side around his arms and legs. His gloves and boots are both red in color accentuated with a white scarf. He wears a red belt with a metal buckle and the letter "J" on it, which stands for "Japan". A shield on his chest possesses the "Hinomaru", a red circle which represents the sun on the Japanese flag; this also represents the number "1" in representing the team. His mask is red completely covering most of his face with sculpted hair outside two "eyes" which are similar in form to the masks of Gorenger and Battle Fever. Beneath the red mask is a semi-circle in gray with a sculpted nose and mouth.

Legend Sentai Devices

Battle Japan Ranger Key

The Battle Japan Ranger Key.

The Battle Japan Ranger Key (バトルジャパンレンジャーキー Batoru Japan Renjā Kī) is Masao Den's personal Ranger Key and what became of his powers after he along with the rest of the 34 Super Sentai sacrificed their powers to end the Great Legend War.

This key along with the majority of the Ranger Keys were collected by the Red Pirates and later used by the Gokaigers. The Battle Japan Ranger Key was mainly used by Captain Marvelous (Gokai Red), who used it to fight as Battle Japan. It was also used by Gai Ikari on one occasion.

The Battle Fever keys, along with all the Ranger Keys of the first 33 Super Sentai, were briefly taken by the Black Cross King and turned into Ranger puppets that were fought by the Gokaigers and the Goseigers. The Battle Fever keys were defeated by Gokai Pink. Gokaiger Goseiger Super Sentai 199 Hero Great Battle

After Zangyack were finally defeated, the Gokaigers gave the Ranger Keys back to their rightful owners. Masao received his key and became Battle Japan once more. Final Ep.: Farewell Space Pirates


Battle Fever Zyudenchi

The Super Sentai Zyudenchi (スーパー戦隊獣電池 Sūpā Sentai, Super Squadron Beast Batteries), alternatively named Legend Sentai Zyudenchi (レジェンド戦隊獣電池 Rejendo Sentai Jūdenchi, Legend Squadron Beast Batteries) in the toyline, are a special line of Zyudenchi that contain the likeness of the Sentai teams before Kyoryuger (represented by the main Reds). These Zyudenchi are in the same fashion as the "Legend Rider" lines of Collectible DevicesIcon-crosswiki in the Kamen Rider Series.

An Battle Fever Zyudenchi, bearing the likeness of Battle Japan, is a part of the Legend Sentai Zyudenchi toyline which can be used in Super Sentai Battle: Dice-O.

SG Battle Fever Ressha

Battle Fever Ressha

The Legend Sentai Ressha (レジェンド戦隊レッシャー Rejendo Sentai Ressha) are Ressha based on the mecha, specifically those belonging to the Red heroes, of the ToQgers' predeceeding Super Sentai teams. They can form a unique combination of ToQ-Oh reminiscent of past Sentai Robos by switching with Red Ressha. The ToQ Changer toy is shown to have sounds for Legend Ressha of all 37 previous Sentai.

The Battle Fever Ressha (バトルフィーバーレッシャー Batoru Fībā Ressha) appears as a toyline-exclusive SG Ressha.

Red Spirit

30 Red Senshi

The 30 Red Rangers AkaRed embodied in Boukenger vs. Super Sentai; Battle Japan is the second from the left in the upper middle row.

As the third Red, Battle Japan's Red Warrior Spirit was embodied by AkaRed. GoGo Sentai Boukenger vs. Super Sentai

Behind the scenes


Masao Den is portrayed by Hironori Tanioka. As Battle Japan, his suit actor was Kazuo Nibori.


Early Battle Fever

An early version of the Battle Fever suits.

  • During early promotions for Battle Fever J, Battle Japan had yellow eyes, rather than the finalized black.

Battle Japan Zyudenchi

  • Battle Japan represents Battle Fever J for the Battle Fever J Zyudenchi that was released as part of the Legend Sentai Zyudenchi line of Zyuden Sentai Kyoryuger.
RyuuRanger and Battle Japan

Battle Japan as the first official Red with RyuuRanger, the then current Red, in a stage show commercial aired during Dairanger.

  • Until Kakuranger, Masao was technically the first Super Sentai Red, as the first two Super Sentai series, Gorenger and JAKQ, were not officially part of the Super Sentai series until Toei included them when Ohranger was announced. Akarenger of Gorenger is now the first Red.


External links

Red Rangers
Main Series

Secondary Rangers

Misc. Rangers
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Power Sets
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