Tenchi Muyou! Game Hen is a turn-based game played from an isometric perspective. The game focuses entirely on fighting monsters within progressive worlds, all of which contain linear paths with predetermined battles. As such, the player does not freely roam or interact with the world.
There are a total of 12 playable characters in the game: Tenchi, Ryoko, Ayeka, Mihosi, Sasami, Mizuki, Ryo-Onki, Katsuhito, Yukinojyo, Azaka, Kamidake and Washu. The player starts with the beginning four, acquires the subsequent two later, and, by visiting more varied locations, can acquire the remaining six. In prototypical role-playing fashion, each character has different movements, skills, personal advantages, attacking power, health and defense. Unlike the commonly instituted experience points system, however, characters level up by the accumulated number of monsters they defeat in battles. There is a cap of eight levels that each player character can earn (unlike the Final Fantasy series and Chrono Trigger where each character's level can go up to 99). Up to four characters can be brought into combat at once and matches continue until all members of either side are eliminated.