Ranma ½ - Akanekodan no Hihou (Treasure of the Red Cat Gang) is an old-school RPG, and it's quite fun actually. There's two translations, the manga version and the anime version. Ranma ½ - Chogi Ranbu Hen is a subpar fighting game. Ranma ½ - Ougi Juaanken is a puzzle game similar to Columns and the likes. There are better puzzle games out there. Ranma ½ - Hard Battle is another very subpar fighting game, almost as bad as Pit Fighter. Akanekodan no Hihou is the only one translated, and the only one worth your time. Still, the story makes very little sense if you're not familiar with Ranma ½ (The manga or the anime).