lost episode
Dirge of Cerberus: Lost Episode is a cellphone shooter game released in 2006 for Japanese and North American cellphones. The story is set in the same timeline as Dirge of Cerberus, and, as the name says, it reveals something missing in that game.
Taken from Wikipedia: Three years after Meteorfall from the original Final Fantasy VII, the world is threatened by the Deepground soldiers, a mysterious army of bloodthirsty warriors. Vincent Valentine learns that the soldiers are searching for him in the hopes of harvesting the Protomateria from his body. He decides to investigate the Shinra Mansion in an effort to uncover the truth about his own past—and the mystery behind the Protomateria as well. Reeve Tuesti's goal is to find information on the DG written by Dr. Lucrecia Crescent. On his way to the mansion, his chopper is attacked by the Deepground. He survives and makes his way to the Shinra Manor, fighting countless Deepground Soldiers.
