Transformation Ninja Sword Ninja Ichibantou

"The Henge! Nin nin nin, nin ninin nin! Nin nin nin, nin ninin nin!"

- Transformation announcement

"The Waza! Nanja nanja?! Nanja nanja?!"

- Finisher announcement

"The Shoukan! Dareja?! Dareja?!"

- Otomo Nin calling announcement

Transformation Ninja Sword Ninja Ichibantou (変身忍刀忍者一番刀) is the transformation device, sidearm, and main weapon for the main five Ninningers.

Transformation
By inserting their activated transformation Nin Shuriken and pressing the red transform button, marked with the kanji for "Change" (変) on the Ninja Ichibantou, the blade announces '''"The Henge!" (ザ・変化！)''', then a standby chant of "Nin nin nin, nin ni nin nin!" (ニンニンニン、ニンニニンニン！) until the Ninningers spin their Nin Shuriken with a call of "Shuriken Henge!" (シュリケン変化), which then creates holograms of their main Nin Shuriken shapes, forming the body suit as the Ninja Ichibantou announce the Ninningers being transformed. Once done, another set of Nin Shuriken appear over their faces, forming the helmets and completing the transformation.

Finisher
When the blue finisher button marked with the kanji for "Technique" (技) is pressed, it makes the Ninja Ichibantou announce "The Waza" (ザ・技！) allows a Ninninger to perform a 'Secret Shuriken Ninja Art (手裏剣忍法奥義)', all while the Ninja Ichibantou chants repeatedly "What is this?!" (なんじゃなんじゃ？), until the Ninninger spins their Transformation Nin Shuriken, making said Shuriken announce their specific color. Just before the final blow is struck, the Ninja Ichibantou announces "Ninja Issen!" (忍者一閃！).


 * Ninja Violent Slash (忍烈斬): A Ninninger slashes fast and hard, swinging the Ninja Ichibantou with powerful and fast swings, then jumps into the air. As the Ninninger comes down, they spin in place until they land with a finishing strike.
 * True Secret Technique: Super Ninja Violent Slash (真奥義・超忍烈斬): A Ninninger spins in place as they fall down, then slashes powerfully in many spinning slashes.
 * Simultaneous Ninja Violent Slash (一斉忍烈斬): All five Ninningers slash at the Youkai once as they rush past the Youkai, then AkaNinger comes in with another slash, then all five Ninningers jump upwards, then spin as they fall down, and when they land, all five give one final slash on the Youkai.
 * Sibling Ninja Violent Slash (京大忍烈斬): A tag-team version of the Ninja Violent Slash with the Igasaki Ninningers, both jump into the air and spin in place as they descend towards the target and both give punishing slash attacks.
 * Tower Ninja Whirlwind (塔忍旋風): The Ninningers stand in a tower base position, with AkaNinger being the spire, and the five ninja spin around until they become a tornado and fly at the target, slashing it until it is destroyed. This finisher was used on the shrunken Kuliner Robo in Ressha Sentai ToQger vs. Kyoryuger: The Movie.
 * Shuriken Slash (手裏剣斬): A Ninninger jumps and spins around until they transform into a energy form of their Transformation Nin Shuriken, then fly at the target like a rogue buzzsaw blade.

Summoning
The Ninja Ichibantou can be used to summon the Otomo Nin by inserting their respective Nin Shuriken into the sword and pressing the yellow button marked with the kanji for "Call" (呼), making the Ninja Ichibantou announce '''"The Shoukan!" (ザ・召喚！)''', then chant "Who's that?!" (だれじゃ？) until the Ninningers spin the Nin Shuriken to use the Summoning Jutsu, making the Ninja Ichibantou chant "Who's that, who's that?! Whoooo, who is that?!" (だれじゃだれじゃ？だ～れだれじゃ？) then announcing the arriving Otomo Nin's name. The Ninja Ichibantou also allows the Ninningers to ride the Otomo Nin by stabbing the blade into their Otomo Nin.

When it's time for forming Shurikenjin, the Ninningers, mainly AkaNinger spin the Otomo Nin Shuriken still in their Ichibantou, triggering the Shuriken Gattai. They then insert the Ninja Ichibantou into special slots within the cockpit once the combination is complete to control the mech, with the one who initiated the combination sitting in a special throne. The Ninningers also use the Ninja Ichibantou to play out Shurikenjin's finisher.