Kōken

The Kōken (光剣, "Light Sword") is one of Raiden's weapons, a broadsword made of light.

Fiction

The Headmasters cartoon

When Megazarak landed on Mars to distract the Autobots before they could stop his plans to blow up the planet, Raiden activated his Koken and attempted to take a swing on the gigantic Transformer. He was zapped by Megazarak before he could do so. Explosion on Mars!! MegaZarak Appears

Toys

MPG

• Trainbot Seizan (2023)

• Release date: 2023 September 30
• ID number: MPG-05
• Known designers: Kōjin Ōno (TakaraTomy), Dai Ono (Tomytec), Yuki Ohshima (concept artist)

MPG Trainbot Seizan comes with the Kōken, a translucent blue sword based on its appearance in the Headmasters cartoon. It can be handled by the Trainbot's combined form, Raiden, or any of his components in their robot modes.

• Trainbot Raiden (2024)

• Release date: 2024 February 24
• ID number: MPG-06S
• Known designers: Kōjin Ōno (TakaraTomy), Dai Ono (Tomytec), Yuki Ohshima (concept artist)

MPG Trainbot Raiden box set comes with a chromed version of the Kōken.

Notes

• The Kōken exists simultaneously with the "Light Sword", another cartoon-original weapon used by Raiden in "Head On!! Fortress Maximus". Whether this means some wires were crossed during production of The Headmasters is unclear.