Mega Man Legends (Nintendo Cinematic Universe)

Mega Man Legends is a Japanese graphic novel series.

Adventurous Spirit of Steel
A family of treasure hunters crash on Kattelox Island, where Mega Man confronts pirates who are attacking it to obtain its hidden treasure.

Great Inheritance
Mega Man Volnutt goes to find four keys hidden in the planet in order to aid in the search of the Mother Lode, a legendary treasure thought to be an infinite energy source.

Adventurous Spirit of Steel

 * Mega Man Volnutt exits a ruin after finding the refractor inside. After dealing with the Reaverbots blocking his way out, he makes his way to the Flutter, which leaves the ruin.
 * However, the Flutter experiences some engine problems and crash lands on Kattelox Island. From there, the Casketts try to find a way to repair their ship. However, when the pirates the Bonnes attack Kattelox's city with giant mechanical weapons, Mega Man decides to stop them.
 * Once Mega Man defeats the Bonnes, Kattelox's mayor, Amelia, tells Mega Man the Bonnes are searching for the island's secret treasure and that it is said if somebody obtains it, a great disaster will befall the island.
 * Amelia asks Mega Man to investigate the island's ruins. With a refractor found in a ruin, Roll and Mega Man repair the Flutter, allowing them to find a cave to continue exploring the island.
 * While exploring the cave, Mega Man activates the Main Gate, a dungeon where he should be able to find the reason why Reaverbots from the island are being activated.
 * Mega Man confronts the Bonnes who, after being defeated once again, decide to let Mega Man enter the Main Gate, planning to steal the treasure from him afterward.
 * When Mega Man explores the depths of the Main Gate, he discovers it is actually a stasis chamber for the ancient robot Mega Man Juno, a 3rd class bureaucratic unit from Eden, a space station orbiting above the planet. When he is accidentally awakened from his sleep by Mega Man, Juno refers to Mega Man as "Mega Man Trigger" and realizes that Mega Man is suffering from memory loss.
 * Juno claims that the island's population needs to be purged so it will be more controllable and confronts Mega Man when he tries to stop him. After a struggle, Juno is defeated and dies.
 * Even with Juno's physical body gone, he transfers his backup data into the systems of Eden, preventing the halt of the Carbon Purification Process.
 * Data gives new commands to the system, stopping the Purification and deleting Juno's backup data from Eden.
 * Data then reveals to Mega Man that he contains all of his previous memories from when he was Mega Man Trigger.
 * Mega Man had stored his memories into Data as a way to prevent Eden from ever tampering with it.
 * Data promises to restore Mega Man's memory when the time comes.
 * The residents proclaim Mega Man a hero and the Caskett family rides off in the repaired Flutter to continue their journey.
 * The Bonnes sail on a vessel built by Tron out of the scraps from the Gesellschaft, with the giant refractor from the main gate and Bon Bonne in tow.

Great Inheritance

 * A news conference is held by Professor Barrel Caskett and his old friend Werner Von Bluecher about the upcoming journey to the Forbidden Island in a large airship called the Sulphur Bottom to search for the Mother Lode.
 * Barrel recognizes a reporter, Yuna, as his lost daughter, Matilda Caskett, who warns them of the catastrophe that could transpire if they pursue their journey.
 * Yuna escapes with her servant, a Reaverbot flying machine-like being named Gatz to break the windows for her escape.
 * Ignoring her warning Bluecher continues to the center of the island.
 * Yuna orders Gatz to give warning shots but due to the hostile retaliation of the Sulphur Bottom, Gatz damages the engine, forcing the airship to descend to the island below.
 * Mega Man Volnutt and Roll Caskett watch the events from television and decide to rescue them.
 * With Roll's help, Mega Man makes his way to the center of the island and in the process releases a girl called Sera and her servant Geetz, both of whom go to the Sulphur Bottom.
 * Geetz tells Bluecher and Barrel that the Mother lode can be accessed by means of four keys.
 * Bluecher and Barrel ask Mega Man if he could retrieve the keys before the Pirates who heard their conversation with Geetz.
 * Mega Man along with Roll set forth to find the four Keys in the Manda, Nino, Saul Kada and Calinca Ruins, while battling the Pirates, most often the Bonne Family, along the way.
 * When Mega Man returns with the final key to the Sulphur Bottom, Sera orders Geetz to attack the ship and take the keys.
 * Yuna appears in the ship and orders Gatz to fight Geetz.
 * Mega Man stumbles upon Yuna, who then gives some reminder about his former life and explains to him the terrible catastrophe she was trying to prevent: Sera's plans for the execution of the "Carbon Reinitialization Program", meant to kill every human from Terra and revive the original humans.
 * Soon after, Mega Man reaches the deck of the Sulphur Bottom and sees Gatz defeated by Geetz.
 * Mega Man is able to defeat Geetz, who, using his last forces, seriously damages Mega Man.
 * While recovering, Mega Man starts to explore his past. In his dreams he sees himself and a man known as "Master" going to Terra and giving Mega Man his "Genetic Code" before dying and requesting that Mega Man destroy the system that can start the Carbon Reinitialization Program.
 * Yuna tells Mega Man to choose whether to follow what the System wants him to do or oppose it.
 * Mega Man then takes a flight in a ship merged with Gatz heading for the planet Elysium with Yuna.
 * In Elysium, Mega Man reaches the room where the Carbon Reinitialization Program is to be executed from.
 * Sera then appears in the form of a robot to Mega Man and states that she did not execute the Carbon Reinitialization Program but has, instead, been waiting for Mega Man's arrival to challenge him in hopes that by defeating him she would prove that their master liked her more.
 * In battle, Gatz tries to aid Mega Man by attacking Sera's logic circuits but dies in the attempt.
 * As Mega Man defeats Sera, Yuna arrives at the scene reminding Sera that it is not their Master's wish for her to die.
 * Sera awakes in Yuna's real body and decides to help Yuna protect the Carbons from the machines that are being activated in Terra due to an old system Master tried to stop. However, due to Gatz's death, Mega Man, Sera and Yuna are now stranded in Elysium with no means of transporting back to Terra any time soon.
 * Roll works with Tron to build a rocket and rescue Mega Man from Elysium.

Adventurous Spirit of Steel

 * Based on Mega Man Legends.

Great Inheritance

 * Based on Mega Man Legends 2.