OVA: (
Type) OVA = Original Video Animation. These are the direct-to-video anime titles done in Japan. Often, OVAs can start a franchise (
Tenchi Muyou! Ryououki), start a TV series (
Mahou Tsukai Tai!), be a sequel to a TV series (
Love Hina Again), or be a stand-alone title (
Aa! Megami-sama! OVA). Sometimes, the OAVs are named the same as the TV series and thus will sometimes have the term OVA listed after the title's name to separate it.
Dark: (
Style) Titles that are dismal or gloomy in nature qualify for this category.
War: (
Story/Location) Titles of this category should cover the events of a war as significant element of the storyline (even if the actual conflict doesn't get that much airtime). The opponents should be nations
at least (alien races, star systems, parallel universes etc. are fine as well); conflicts between smaller organizations would rather be categorized as "
Fighting".
