Hirokazu Hiramatsu

A group of young police officers infiltrate a sleazy night club in an attempt to apprehend a man named McCoy, who is involved in kidnapping and white slavery. The plot twists when one of the officers is kidnapped! (imdb)

In the Pentagona System, a young man by the name of Daba Myroad leads a rebellion against Pentagona's leader, Oldna Poseidal. Daba's not alone however, meeting a large number of allies along his journey and having in his possession the powerful L-Gaim, a white Heavy Metal left to him by his father. (myanimelist.net)

A recap OVA that portrays the first half of the series Heavy Metal L-Gaim. After the credits, there is a short clip animated for the OVA entitled "Lady Gavlet", which is intended to be comic relief.

A recap OVA that portrays the second half of the series Heavy Metal L-Gaim. After the credits, there is a short clip animated for the OVA entitled "Pentagona Dolls", which is intended to be comic relief.

A side story taking place somewhere before the second half of the series, prior to Daba acquiring the L-Gaim Mk-II. Daba's comrade Leccee is captured by Poseidal's forces, and Daba and his rebels attempt to save her.

There's an old decrepit building at the edge of the school grounds that hasn't been used for years, and it falls apart a little bit more each day. But the little house holds a secret, as Takahiro and his friends are soon to find out... they wind up making contact with a mysterious entity known as Saki. Can Takahiro save Saki's world from destruction? (imdb)