|Series:||Saban's Masked Rider|
MRW Origins: ZX
|First Appearance:||The Invasion of Leawood|
|Number of Episode Appearances:||1 (Saban's Masked Rider)|
|Masked Rider ZX|
- "I am... ZX."
- ―Masked Rider ZX, as he introduces himself
He is the last Masked Rider Warrior to have appeared.
War of the Heroes: Riders vs. Rangers
ZX was among the Kamen Riders caught up in the 'War of the Heroes' incident. He was presumably sent to the dimensional rift, under the pretense of being defeated, by Captain Marvelous while he was apparently hunting the Riders. When his and Tsukasa's ruse was revealed, ZX and the other Riders appeared through the dimensional wall. ZX then fought alongside all the other Kamen Riders and Super Sentai against Dai-Shocker and Dai-Zangyack's Valkyrie-Armada Alliance. He is seen during the final battle fighting Grand Beast Rei with GoseiRed, and the Hurricangers, and later seen grabbing Zangyack Commander Daiyarl.
War of the Riders: Masked vs. Kamen vs. Power
Under the direct order of Takeshi Hongo, Ryo Murasame disguises himself as his archenemy, Ambassador Darkness, in order to investigate the Badan Empire's plan, as well as make sure Gaim is the last surviving Rider from Rider Battle and to revert all the Riders out of their Lockseed forms. All the Riders are defeated and turned into Lockseeds, leaving Gaim alone and outnumbered by the Empire. Ryo finally made his move to expose his cover to the Empire that he was spying on the Empire's plan. He transformed into ZX and helped Gaim release all of the primary Riders from their Lockseed forms to defeat Kamen Rider Fifteen and the Badan Empire once and for all.
In the conclusion, he fights Tsukasa when Takeshi reveals that their feelings toward Heisei Riders was not a lie.
Masked Rider ZX
The Ecto-Accelerator Belt is Keanu's transformation belt that allows him to transform into ZX.
- Keanu/Masked Rider ZX is the first Masked Rider Warrior with an association to Japanese culture; notably a ninja.