Digimon: Digital Monsters 02

A few years after the adventures of the Chosen Children in the Digital World, a new batch of Chosen Children are summoned to save the Digital World. An evil ruler known as the Digimon Kaiser, or Digimon Emperor, is forcing the Digital World's Digimon into enslavement. The new group of Chosen Children, with the help of their Digimon, then begin a journey to stop the evil Digimon Emperor.

Digimon Frontier

Takuya Kanbara is an average city kid who receives a text message from an unknown source instructing him to "board a train towards his destiny". Taking up the Call to Adventure, he finds the train in question and is whisked off to the Digital World, which is currently under threat from the malevolent Cherubimon. Cherubimon and his minions are consuming the very building blocks of the Digital World (its "Fractal Code") to increase their own power, and if nothing is done then the entire Digital World will be devoured. All is not lost, however. Takuya and the other "chosen" children who boarded the train inherit the power of the Ten Legendary Warriors that saved the Digital World in the distant past, allowing them to transform themselves into Digimon. With their new powers, they fight to take back the stolen Fractal Code and restore the fractured Digital World to its former glory. (Source: TV Tropes)

Digimon Ghost Game

Sightings of mysterious creatures known as "Hologram Ghosts" have been a popular topic on social networks for the past few years. According to the rumors, several people have fallen victim to these specters. Those fortunate to survive their encounters with the paranormal beings claim that they resembled glitched holograms. Hazakura Academy middle school student Hiro Amanokawa believes these sightings are merely an urban legend. However, as the incidents start to increase in frequency, he is reminded of the day his father suddenly vanished, with strange digital watches serving as the only relics of his disappearance. Much like the other sightings, what happened to Hiro's father cannot be explained by conventional logic. One day, when a fellow student in the academy is attacked by a Hologram Ghost, Hiro and his friend Kiyoshirou Higashimitarai decide to look into the matter. Little does Hiro know that this investigation will be their first step toward discovering a dangerous world previously unknown to mankind. (Source: MAL Rewrite)

Digimon X-Evolution

A virtual world was created by the present-day network called the "Digital World". The "Digital Monster", which is a digital life object, was born, and the host computer Yggdrasil managed the different Digital World areas. However, it developed the X Program of fear to eliminate all Digimon in the old world and develop a new Digital World for only certain Digimon... Now, the greatest crisis ever approaches the Digital World. The X-Digimon, a new type of Digital Monster, is hunted by the Royal Knights who protect the Digital Worlds. Their master, the network overseer Yggdrasil, seeks to set in motion Project Ark to renew the Digital Worlds and create new Digimon, but at the cost of all other digital life. This new X-Digimon will seek out the answers to its own existance as it tries to protect the life of all Digimon, and in the process it will change the Digital Worlds forever. (Source: Anime News Network)

Digimon Data Squad

Masaru, a second year Junior High student and undefeated street-fighter, is about to learn the meaning of the word "teamwork." After Agumon escapes DATS, an organization that deals with Digimon, it winds up in a fight with Masaru. Soon Yoshino and Lalamon come to capture Agumon, and the two fighters escape. After an evil Digimon appears, it's up to Masaru and Agumon to defeat it with their DNA Charge. Soon, Masaru must join DATS to put an end to the Digimon coming to Earth. With the help of Yoshino, Ikuto, and Touma, the group must stop any evil Digimon that appear, and return them to the Digital World. But not everything goes as planned...