Here is an overview of the game, via its official website:
“Deep Log.” The digital world where the Mega Man X series games were stored. Also the memory of “You” as a player….
The “Deep Log” appears to be abnormal for unknown reasons. All stages, Mavericks, and all the characters from the Mega Man X series are mixed up because of game errors.
Come, players! Get into the Deep Log, defeat the Mavericks, and get the game data repaired.
Watch the announcement trailer below.