Heroman specials released in DVD/BD volumes 2, 5 and 8.

An abnormal phenomenon has been observed in Kaga, where Akina and his friends live. A town shrouded in thick fog, a great tower standing sentinel… This is the Fantasma. ——On the night when the crimson moon rises, they shall become Fantôme. (Source: Official Site)

The story takes place in Lingshan, where a group of hopeless people are gathered on the earth. Most of them are poor, vicious, or extremely evil, abandoned by the society in Lingshan. This is where the fourth generation of Kuiba Mi Lin was born. The Heavens struggled to find Kuiba to no avail. In order to eliminate Kuiba, the Heavens determined to blast Lingshan into the ground. Mi Lin rose from the predicament, and his spirit gradually awakened souls with flesh and blood in Lingshan. Mi Lin led the Lingshan Army to sweep across the world, against the Heavens, and became the overlord of the world. (Source: Tencent, translated)

A short animation serving as a prequel to the events depicted in the PlayStation 3 game, Mobile Suit Gundam: Battlefield Record U.C. 0081. (Source: AniDB)