Gekiatsu Shuriken Gattai Gekiatsu Dai-Oh

"Ge-ki-at-su! Achaaa! Ge-ki-at-su! Achaaa! Gekiatsu Dai-Oh!"

- Gekiatsu Dai-Oh combination

Gekiatsu Shuriken Gattai Gekiatsu Dai-Oh (ゲキアツシュリケン合体ゲキアツダイオー) is the second mecha of the Ninningers.

Overview
Gekiatsu Dai-Oh, unlike the rest of the Ninningers' mecha, can be formed without the use of a Nin Shuriken as the Ninningers become the OtomoNin themselves through the possession technique. During the combination, the six OtomoNin chase the Gekiatsu Dai-Oh Shuriken while combining. Genbumaru's back area folds up to reveal a pair of ports, which Byakkomaru and Pandamaru connect to by levitating themselves to them. Genbumaru then turns around, allowing the feet to touch the ground and stand up. Seiryuumaru and Magoimaru then catch momentum via drifting to become the arms, and finally, the Nin Shuriken becomes the head and Hououmaru plugs in to the back.

Gekiatsu Dai-Oh fights without weapons, using rapid punches and kicks to overpower the opponent. Its special moves are:
 * Gekiatsu Fire (ゲキアツファイア): Gekiatsu Dai-Oh fires a large fireball.
 * Gekiatsu Shot (ゲキアツショット): Gekiatsu Dai-Oh emits projectiles from the AkaNinger, AoNinger, KiNinger and StarNinger emblems that bind the opponent and give them an electric shock.
 * Seiryuu Water's Reflection (セイリュウ鏡花水月): Gekiatsu Dai-Oh makes a circling motion with its right arm, creating a water shield that reflects projectiles.
 * Seiryuu Fist (セイリュウ拳): Gekiatsu Dai-Oh unleashes a powerful dragon punch.
 * Jiraiya Technique (ジライヤの術): Accessed by AkaNinger using the Jiraiya Nin Shuriken, it allowed Gekiatsu Dai-Oh to channel the power of the statue . Used in order to turn the tide against the Advanced Yokai Konakijiji who had piggy-backed onto the robo in an attempt to crush it into the ground, he was repelled by the emission of green flames which made Gekiatsu Dai-Oh too hot for the Yokai to handle.
 * Stretching Technique (蜿蜿長蛇の術): The wings of Hououmaru ignite in flames giving Gekiatsu Dai-Oh the ability to fly above the opponent.

Gekiatsu Dai-Oh's finisher is the Gekiatsu Grand Fever (ゲキアツグダイフィーバー), where the six Ninningers are launched from the barrels in Gekiatsu Dai-Oh's chest, and they slash the target with enough force to defeat them.
 * A variation of this finisher is the Flying Gekiatsu Grand Fever.

History
The Gekiatsu OtomoNin were created by the Ninningers, under the supervision of Tetsunosuke Saika XXII, in response to most of their OtomoNin almost being destroyed by Kyuemon's Karakuri Kyuubi. Initially they could not figure out how to power them as their other OtomoNin were imbued with souls, a technique they could not master. It was not until they faced a giant Minija that Takaharu proposed powering the OtomoNin by possessing them using advanced Ninpou.

Facing the Poison Arrow Ninja Suzumebachi who had taken a liking to Yakumo, Gekiatsu Dai-Oh earned her fancy as well. Tired of the whole situation, AoNinger personally repelled her with the Seiryuu Water's Reflection amd Seiryuu Fist before the Ninningers performed the Gekiatsu Grand Fever to destroy her.

OtomoNin Hououmaru
OtomoNin Hououmaru (オトモ忍ホウオウマル) is a Fenghuang-themed OtomoNin designed by Takaharu. It forms the headdress of Gekiatsu Dai-Oh.

OtomoNin Seiryuumaru
OtomoNin Seiryuumaru (オトモ忍セイリュウマル) is a dragon-themed OtomoNin designed by Yakumo. It forms the right arm of Gekiatsu Dai-Oh.

OtomoNin Genbumaru
OtomoNin Genbumaru (オトモ忍ゲンブマル) is a tortoise-based OtomoNin designed by Nagi. It forms the chest, torso, waist and thighs of Gekiatsu Dai-Oh.

OtomoNin Byakkomaru
OtomoNin Byakkomaru (オトモ忍ビャッコマル) is a white tiger-based OtomoNin designed by Fuuka. It forms the right leg of Gekiatsu Dai-Oh.

OtomoNin Pandamaru
OtomoNin Pandamaru (オトモ忍パンダマル) is a panda-themed OtomoNin designed by Kasumi. It forms the left leg of Gekiatsu Dai-Oh.

OtomoNin Magoimaru
OtomoNin Magoimaru (オトモ忍マゴイマル) is a black carp-based OtomoNin designed by Kinji. It forms the left arm of Gekiatsu Dai-Oh.

Appearances

 * Shuriken Sentai Ninninger
 * Shinobi 32: Extremely Hot Ninja! Acha!
 * Shinobi 33: The Kunoichi That Loved Yakumo
 * Shinobi 34: Enter Jiraiya, Legendary World Ninja!
 * Shinobi 35: Kinji Enters the Yokai Labyrinth!
 * Shinobi 36: Kinji, the Glorious Super Star
 * Shinobi 37: Shuriken Legend ~The Road to Last Ninja~
 * Shinobi 38: The Witch Girl Loves Yakumo?
 * Shinobi 39: Kibaoni's Son, Mangetsu Appears!
 * Shinobi 41: The Five Games of the Kibaoni Party!
 * Shinobi 42: OtomoNin Wars! Nekomata Strikes Back
 * Shinobi 45: Three Generations of Fathers and Sons! All Ninjas Gathered
 * Shinobi Final Chapter: To a Future Without Hiding, Wasshoi!