Saotome Ranma, a teenage martial artist, and his father Genma travel to the 'cursed training ground' of Jusenkyo in China. There, despite the warnings of the Chinese guard, they fall into the cursed springs. From now on, whenever Ranma is doused in cold water, he turns in to a girl, and a cute, well-built red-head at that. Hot water changes him back into a man again, but only until the next time. To make matters worse, his father engages him to Tendo Akane, a girl who hates boys.

[Source: Anime News Network]

A two-part music OVA series never released outside of Japan featuring the main Ranma 1/2 characters. They appear to be having a music contest at a local TV station. As everybody knows, these characters can't get along for more than three minutes and hilarity and hijinks ensue.

[Source: AniDB]

All is well at the Tendo residence when from out of nowhere, a Chinese girl named Lychee appears, seeking revenge on Happosai for a broken promise made since her birth. Things get worse when Kirin and the Seven Lucky Gods appear and abduct Akane to take as his wife. Ranma and the gang must travel to Nekonron, China, and save Akane from getting married to Kirin.

[Source: Anime News Network]

Ranma and the gang are invited to a boating trip with Kuno. Unfortunately, a storm destroys the yacht and everyone is stranded on a remote island. The whole situation goes even more awry when one by one, the girls disappear without a trace. Ranma then finds out that the girls are abducted by Toma, ruler of the island, as part of his personal harem.

[Source: Anime News Network]

This features a Nabiki narrated review of the series where she discusses various characters that the Tendo family has had to tolerate spliced with new animation of Nabiki hanging around the house, taking a bath, and wondering about the true identity of P-chan. It was available through the Kitty Animation Circle.

[Source: furinkan.com/ranma/anime/specials.html]

Collections of "Best Of" moments from throughout the series. This one focused on romantic moments, and shifted between the scenes with interviews with Kappei Yamaguchi, Megumi Hayashibara and Noriko Hidaka. Also interviewed are Rei Sakuma, Koichi Yamadera, Saeko Shimazu, and Yuuji Mitsuya.

[Source: furinkan.com/ranma/anime/specials.html]

Ranma Saotome continues his search for a way to become a normal teenage boy again. He gets into many hilarious situations involving the many girls in his life. One of the biggest challenges is overcoming the proposals from others who have found a suitable bride for Ranma. But he has his own worries and must muster up the best of his wits and martial arts to keep his sanity. It's not easy being desired by so many women (and men) and not breaking hearts of a few along the way. He just might be able to find it in his heart to confess to Akane or simply find another excuse that he can't marry such a tomboy girl.

[Source: Anime News Network]

Kuno purchases a strange egg, believing that the mysterious powers of the legendary Phoenix will help him defeat Ranma. But when the egg hatches on his head, the bird goes out of control and wreaks havoc all over Tokyo. Ranma and the gang must use any means necessary to get the Phoenix to leave Kuno's head and fly away.

[Source: Anime News Network]

"Reawakening Memories" deals with Akane suddenly remembering a trip to Ryugenzawa when she was a small child. While there she was saved from a giant platypus by Shinnosuke. Akane travels back to Ryogenzawa and once again meets Shinnosuke, who falls in love with her. Akane blames herself for Shinnosuke's life-threatening injuries, and decides to stay and help out. This irritates Ranma, who thinks that Akane has fallen in love with Shinnosuke, and will do what it takes to get her back.

Series clips shown along with the music that freeze-frames when a new move is shown. The writing at the bottom says "Anything-Goes Martial Arts Technique/Trick Picture Scroll". This was put out by the KAC (Kitty Animation Circle), and so it wasn't commercially available in stores.

[Source: furinkan.com/ranma/anime/specials.html]

This special, known in Japan as "Batoru Kaiibai 29 Hitou Korinai Yatsura," was available through the Kitty Animation Circle making it a difficult item to come by. It contained clips from twenty-nine of Ranma's most memorable opponents from the television series.

[Source: furinkan.com/ranma/anime/specials.html]

This was a collection of the opening and ending OAV themes performed by DoCo, the musical group made up of Ranma ½ cast members. Also included is an interview with the cast during their recording of the "Tunnel of Lost Love" OAV. The interviewed voice actors included: Kappei Yamaguchi, Megumi Hayashibara, Noriko Hidaka, Keniichi Ogata, Minami Takeyama, Kikuko Inoue, Ryunosuke Obayashi, Hiromi Tsuru, Rei Sakuma, Toshikiko Seki, Miyoko Asou, Koichi Yamadera, Hirotaka Suzuoki, Saeko Shimazu, and Shigeru Chiba.

[Source: furinkan.com/ranma/anime/specials.html]

Super OVA 1: Based on a story from vol. 27 of the manga, Shampoo and Ukyo arrange to travel to a cave that is legendary for breaking up couples. They hope they will cause Ranma and Akane to break-up and Shampoo hopes to ditch Mousse the same way.

Super OVA 2: "Jaaku no Oni" (lit. "The Wicked Demon") was released in 1995. Based on a story from vol. 29 of the manga, an Oni (that wears a tiger-striped diaper just like the Oni of Urusei Yatsura) escapes it's sealed box and begins to possess people in the neighborhood.

Super OVA 3: This is a story from vol. 31. Ranma disturbs a doll that takes revenge on anyone that shows it disrespect. In order to teach Ranma a lesson, the doll possesses Akane and tries on many occasions to attack him.

[Source: AniDB]

Twelve years after the final OVA was shown, and the end of the manga, a new piece of Ranma ½ animation was made for the "It's a Rumic World" exhibition of Rumiko Takahashi's artwork. The new 30 minute special is based on the "Nightmare! Incense of Spring Sleep" manga story from volume 34, and was shown on odd numbered days at the "It's A Rumic World" exhibition in Tokyo from July 30th to August 11th.

[Source: Wikipedia]

Being a teenage martial artist isn’t easy, especially for Ranma Saotome. During a training mission, Ranma takes an accidental dunk in a legendary cursed spring in China. Now, every time he’s splashed with cold water, he changes into a girl! That would be enough to complicate anyone’s life, even without the arranged fiancée who doesn’t like him (or says she doesn’t) and the constant stream of rivals and suitors for both his male and female forms. What’s a half guy, half girl to do?

[Source: VIZ]