Kamen Rider Gavv: Guilty Parfait

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.

The spirit of Kiba the Dark Makai Knight influenced everything since the beginning. Though he called himself a Makai Knight, Kiba was no different to a Horror. Kiba's spirit resides inside what was once a grey colored Makai Armor that's filled with the dark knowledge of Makai Power. As Barago absorbed Horror after Horror, Kiba eventually deformed into an organically pure black armor with a cape. Kiba assumed full control over his host upon Meisha's defeat by Kouga.

The Crisis Empire devise a plan to defeat Kotaro Minami by reverting him back to his old form of Kamen Rider Black and sending out several revived monsters after him. However, Kamen Rider Black is assisted by another RX, who used a time warp to help his past self. The two are joined by RX's alternate forms of RoboRider and BioRider and the four Kamen Riders combine their powers to defeat the revived monsters.

Shizuka Nomura receives an invitation to a Halloween party, but no matter how many times she throws it away, it keeps coming back to her. Suspicious, Shizuka consults Akiko Narumi. Akiko infiltrates the Halloween party with the new members of the Girl Remix, Rinne Kudo and Nayuta Mikazuki! The host of the party is a surprise?! What kind of party will the Girls Remix experience?!

Taking place after the events of the Kamen Rider Gotchard TV series, the time is approaching for each of them to leave for their individual tomorrows. After graduating from high school, Houtaro Ichinose's dream remains the same: to become a big-time alchemist. Renge Icho and Sabimaru Tsuruhara are also moving on to the next stage. As for Rinne Kudo...

Gaira, a humanoid sea beast spawned from the discarded cells of Frankenstein's monster, attacks the shores of Tokyo. While the Japanese military prepares to take action, Gaira's Gargantua brother, Sanda, descends from the mountains to defend his kin. A battle between good and evil ensues, leaving brothers divided and a city in ruins.

After the Armor Heroes united to seal up the Dark Forces Monsters, the city regained its peace and happiness. Since Monster Ten was not successfully sealed up, Mei Zhen found Zi Yang, hoping that when danger and difficulty arises, Zi Yang would be able to seal up this last monster and would completely eradicate the forces of darkness on earth. Meanwhile the Five sealed in the Monster Sealing Box, in order to fulfill their quest for world domination, used the forces of darkness to entice an angry youth, and created new mutants to create havoc in the city.

Three girl members of the popular idol group "Laser Girls". Their true identity is a reserve member of the mysterious organization X-Force. The three girls are in a series of contradictions. The friendship gradually sublimated, and discovered the evil conspiracy of Doctor Mechanics, in order to guard the earth, the story of fighting alien animals together.

Mild-mannered IRS employee Horatio Hunt takes justice into his own hands to combat a monstrous threat to his city.

Journalists Ichiro Sakai and Junko cover the wreckage of a typhoon when an enormous egg is found and claimed by greedy entrepreneurs. Mothra's fairies arrive and are aided by the journalists in a plea for its return. As their requests are denied, Godzilla arises near Nagoya and the people of Infant Island must decide if they are willing to answer Japan's own pleas for help.

Two fishing scout pilots make a horrifying discovery when they encounter a second Godzilla alongside a new monster named Anguirus. Without the weapon that killed the original, authorities attempt to lure Godzilla away from the mainland. But Anguirus soon arrives and the two monsters make their way towards Osaka as Japan braces for tragedy.

The advertising director of Pacific Pharmaceuticals, frustrated with the low ratings of their sponsored TV program, seeks a more sensationalist approach. He orders his staff to Faro Island to capture King Kong for exploitation. As Godzilla re-emerges, a media frenzy generates with Pacific looking to capitalize off of the ultimate battle.

High-concept Sci-Fi adventure about an island that actually is a computer called Kyron 5, itself created to design and manufacture super-advanced robots to be used as slaves for the rest of the world. One day Kyron decides that human beings are unnecessary, so it declares war on the world. But Kyron cannot be tamed, and after many lives are lost in the attempt, mankind decides to leave Kyron to its own devices.

A nuclear explosion in the far north unleashes Gamera, the legendary flying turtle, from his sleep under the ice. In his search for energy, Gamera wreaks havoc over the entire world, and it's up to the scientists, assisted by a young boy with a strange sympathic link to the monster, to put a stop to Gamera's rampage.

In The Year 2056 in Xinghai City, a strange red aurora had appeared in the sky. The red aurora-attracted evil forces was released and turns into Monsters. In the heaven realm, a Wizard（仙翁）gives the fairy Meimei（美美）four different Crystal Bangles, told that she must find four talented people to transform them into Kaisers, a type of giant warriors to stop the monster.

Gamera escapes from his rocket enclosure and makes his way back to Earth as a giant opal from New Guinea is brought back to Japan. The opal is discovered to have been an egg that births a new monster called Barugon. The creature attacks the city of Osaka by emitting a destructive rainbow ray from his back, along with a freezing spray capable of incapacitating Gamera.