OVA Anime
Hyakumannen Attara, Dousuru?
Educational video that teaches teenagers about value of money, basic banking principles, use of credit cards and other ways of financial interaction in the society.
Kanzen Shouri Daiteiou
When an alien force attacks Earth, a giant sword falls onto the campus of Paradise Elementary School, transforming it into a flying vessel. The fate of the planet lies with one group of kids who must pilot powerful mecha to stop the invaders before it's too late!
(Source: Anime-Planet)
Ichimai no Etegami
An educational film about town planning and factoring the opinion of the elderly as they have lived there the longest.
Ikari no Daichi
This is a full-fledged 90-minute documentary about environmentalism, consumerism, and how Japanese agriculture has been gradually dying out since the 1950s in favor of Western consumer culture and imposed imports. Everything is based on documents, as befits a scientific work.
Kagerouka-kun
Story of a Mayfly that falls in love with a human girl.
Adapted from children's picture book by Mitsuru Nakamura aka 326.
Inochi Kagayaku Akari
An educational film about women's problems, community discrimination (buraku social issues), and the entrapment of disabilities.
Jungle Wars
Based on the RPG game series "Jungle Wars", released on Game Boy and Super Famicom.
(Source: AniDB)
Ishii Hisaichi no Nanda Kanda Gekijou
The Underground People desire to leave their overcrowded cavern and seize control of the surface world, but they never quite succeed. A second episode, Christmas Aid, soon followed, in which the brainless Undergrounders' second futile escape attempt is set to music by the popular group Yukadan. The first volume also included two unrelated stories by Ishii: 101 Ninja and Ken-chan's Space Exploration Adventure.
(Source: The Anime Encyclopedia)
Ishinomori Shoutarou no Rekishi Adventure
A two-part video series in which Dr. Teng (a researcher at the Time Institute) and his faithful kappa assistant Pasuke travel through time, first to the Battle of Sekigahara (1600) and then to the fourth Battle of Kawanakajima (1561). In the second installment, they then look in on the last stand of the Japanese underdog hero Yoshitsune in Hiraizu mi (1189) and then, after spending so much time on the Genpei War, suddenly leap several centuries into the future, to cover the first time Nobunaga Oda used firearms in battle, at Nagashino (1575) . A mixture of live-action and anime, described by Japanese sources as a "documentary with a touch of story," and presumably related in some way to Shotaro Ishinomori's multivolume manga history of Japan.
(Source: The Anime Encyclopedia)
Judo-bu Monogatari
Joseito
A sunny summer's day, the trembling insides of a girl are painted by Dazai Osamu's hidden masterpiece, "School Girl," a "Kaku Nime" production. Dazai's new literature taste is that of a person's challenge. The format of a girl talking to herself is presented by Motosaku, a Dazai Osamu fan as well; a girls of the modern day's heart also will resound as the finishing touches are applied to this work.
(Source: AnimeNfo.com)