OVA Anime
Nekogami Yaoyorozu: Ohanami Ghostbusters
According to the official website, an OVA of Nekogami Yaoyorozu was announced to be released on March 21st 2012.
Spectral Force
In a time when demons rule the world and mankind seeks freedom, human rebels gain control of the demon-slaying sword Tenmaken and attempt to assassinate the Demon King Janus. To preserve the sovereignty of her homeland, the half-human, half-demon Princess Hiro must overcome her deep hatred of the humans or face a war that will ravage the entire world!
(Source: AniDB)
Psychic Force
There are two kinds of people in the world, normal and psychics. Psychics are rare, powerful and feared. Burn Griffith met and befriended one of them, Keith Evans, two years ago. Now he has been looking for his friend, but when he finally succeeds, something's not right. The world has changed, and so has Keith.
(Source: Anime News Network)
Souten no Ken OVA
Episodes 16, 17, 18 and 21 of the Souten no Ken anime series, which were not originally aired, but released on DVD. Because of this, these episodes are uncut/uncensored.
(Source: Wikipedia)
Kodomo no Omocha OVA
The Kodomo No Omocha OVA is a thirty-minute animation video that was made before the TV series. It covers the first volume of the manga, so it's equivalent to TV episodes 1-6. It relates Sana's troubles with Hayama at school as a result of the "oyakodon baka" situation and culminates when Hayama's dad and sister realize their mistakes thanks to Sana's efforts.
(Source: AniDB)
Prism☆Magical: PRISM Generations!
* An exclusive OVA produced for PAJAMAS SOFT 10th Anniversary-Project Prism Magical: Prism Generations! and included with the professional package of the game.
There is a small town on the sea. Raika just enjoys his school life with Ibuki, his old friend, and Yuri, his maid. However, his father is actually a magical girl (?). Also, a group of magical girls come to his school to look for a treasure stone called Mana Prism. Though he doesn't want to wear a girl's costume, he is forced to be a magical girl as well! "Come back, my peaceful life!" To save his school, his battle against the magical girls starts now!
(Source: AniDB)
Makyou Gaiden Le Deus
In a post-apocalyptic world, the treasure hunter Riot and his pretty sidekicks are searching for Eyes of Zalem, which they hope will guide them to Rido, the treasure of a long-lost Quall civilization. A limitless energy source, the Rido has the power to even restore life; but unfortunately for Riot, the evil Demsters are after it too.
(Source: Anime News Network)
Cheer Danshi!! OVA
Unaired OVAs bundled with the fourth Blu-ray and DVD volume.
The first OVA, titled "Iroiro Danshi!!" (Various Boys!!) is four minutes long and is about Wataru Mizoguchi suggesting that the Breakers' cheerleading team members quit and become different kinds of boys.
The second OVA is titled "Kantan!! Cheer Danshi to Issho ni Up Dance" (Simple!! Up Dance Together with Cheer Boys) and is 19 minutes long.
(Source: Anime News Network)
Soreyuke! Uchuu Senkan Yamamoto Yohko II
There is an ancient legend on a distant planet which states (among other things) that four goddesses will one day descend from the skies and all will be right with the world.
Of course meanwhile, Yohko and the rest of the Terra team (with one straggler) have crashed on a backwater world, and they have to figure out a way off before their new charge... gets hungry again!
Every so often, a celebration takes place in one of the most beautiful places in the Universe... a cosmic Sakura fest! Since the Terra Team has been doing so well, one of them is invited to join the high command as they meet their opposite numbers from NESS. It's a time of celebration and a time of peace... but it seems that someone didn't get the message.
(Source: AniDB)
The Humanoid: Ai no Wakusei Lezaria
Dr. Watson has created his masterpiece – a beautiful woman made of metal. A wonder of science, Antoinette is a childlike innocent who holds the key to an ancient civilization that could save the world, or destroy it. And when a mad tyrant kidnaps the man she loves, Antoinette finally discovers the courage – and the amazing fighting skills – that are her true calling.
Sorcerer on the Rocks
Ruthless sorcerer Chivas Scotch is hired by a count named Cuttlefish to destroy an evil monster attacking a nearby village. But things go awry when Chivas fails to destroy the monster and he's forced to transfer his spirit in the body of his beautiful servant Gin Fizz.
(Source: Anime News Network)
Happy☆Lesson: The Final
When Mitsuki learns that the highschool is going to destroy the old school building, she is saddened at the thought of so many memories being erased. Chitose and the rest of the moms spring into action to stop the demolition. During their efforts, Fumitsuki, Chitose, and Mitsuki finally realize their true feelings.
(Source: Anime News Network)
Cherry no Manma
Pops
Kusuko has a secret crush on the resident class playboy, Mishima. However, with the constant rotation of ever-changing girls on his arm, she keeps a safe distance. Mishima takes her standoffish attitude for coldness and confronts her about it. However, they manage to overcome the misunderstandings and even begin dating. The more she gets to know him, the harder she finds herself falling, but one day, she overhears him talking to another girl on the phone...
The Idolm@ster SideM: PASSION of the PASSION
Unaired episode included with the 7th volume of the BD/DVD release of The Idolm@ster SideM.
Dragon Slayer Eiyuu Densetsu: Ouji no Tabidachi
Faaren is a peaceful and happy realm, ruled by a wise King... until the Demon Lord Ackdam overruns the kingdom with his black legions and terrifying dragon, killing the King and capturing the Queen. But the King's young son, Sirius, is swept away to safety and grows to be a powerful young warrior, tutored in the ways of swordsmanship and chivalry by his father's loyal minion, Rias.