Heartbeat Boxing is a story-based boxing simulation starring only female pugilists. There are 11 different fighters, 34 costumes, and various personalities from other HuneX and Tamsoft videogames. A straightforward 3D boxing game featuring an all-female cast, built off the earlier Boxing Champions from the same developer. The nine characters are divided into three weight classes, and each have the usual array of punches, jabs, and uppercuts, as well as their own unique special moves. Two additional characters, as well as extra costumes, can also be unlocked.