Nobuhiro Mouri

Kamen Rider 4 is a web series which was released as an accompanying special to the film Super Hero Taisen GP: Kamen Rider 3. It introduced a new rider, Kamen Rider 4, who is the fourth Kamen Rider cyborg created by Shocker after Kamen Riders 1, 2, and 3. The plot goes around a time loop created by the Shocker that resets whenever someone dies, but whenever the loop resets Shocker itself somehow grows stronger and stronger. Thus, it is up to the Riders to decide whether to keep on fighting a useless battle... Or end the loops for good by sacrificing one of their own.

Taking place 4 years after the events of the Uchu Sentai Kyuranger TV series, the universe is at peace. But that changes when Hammie (Chameleon Green) attacks the Rebellion and steals the newly developed Neo Kyutama! Fearing its possible misuse once it falls into the wrong hands, Space Federation President Tsurugi Ohtori (Houou Soldier) declares Hammie wanted all across the universe. Lucky (Shishi Red) and some of the Kyurangers believe in Hammie, fighting against Tsurugi's decision, causing a rift amongst the Kyurangers. And where do Space Sheriff Gavan and Space Sheriff Shaider fit onto all this?

The ToQGers stop at a station in Zawame City, where there is no Shadow Line activity. However, they come across Kamen Rider Gaim and are brought into a fight with the Underground Empire known as Badan. As the ToQGers and the Armored Riders work together to discover Badan’s true intentions, a mysterious Rider calling himself Fifteen appears…

The story is divided in three portions. The Kamen Rider Wizard portion, Kamen Rider Wizard: The Promised Place, taking place after the finale and defeating Amadum. The Kamen Rider Gaim's portion of the film is titled Kamen Rider Gaim: Sengoku Battle Royale!. A battle royale is being held exclusively for the Armored Riders in Zawame City. In the final portion of the film, titled Sengoku Movie Battle, Kamen Riders Wizard and Beast join Kamen Rider Gaim in the alternate world to stop Kamen Rider Bujin Gaim from acquiring the "ultimate power" he seeks.

Ikki, Touma, and their allies fight against a Devil with ties to Shocker while attempting to help a Kamen Rider from the future reconcile with his now elderly son.

The year is 2021 and the world is in a state of chaos and fear. The ancient king OOO has come back to life after 800 years of dormancy. As the Kougami Foundation mounts a human resistance, Eiji Hino returns to Japan, believing he has at last found the means to revive the Greeed Ankh...

Takatora Kureshima (Kamen Rider Zangetsu) visits a former Yggdrasill Corporation experimental project site located in the poverty and conflict stricken Republic of Torukia. He is visiting the site for the first time in 8 years, and is suddenly attacked! Suprised he stumble and falls into a giant hole which leads into an underground city. This underground city is the most dangerous place in the republic, in which many young men are killed defending themselves while trying to survive. These men use Lock Seeds and Drivers to transform into Armored Riders. Due to the fall Takatora has lost his memory. He is helped by the leader of Team Orange Ride. Unbeknownst to them, there are cameras hidden all around the underground city. The ones behind the cameras are responsible for the conflicts in the city. One man in particular is seeking revenge on Takatora for a specific reason...

The fourth play in the 'Heli-X' series. When Sadness woke up, she was alone in a dimly lit place. A small ray of light illuminated the knife in her hand. When she looked at the ground, she saw a large pool of blood and a motionless body... A corpse with a face she recognised. Was Sadness the one who killed them?