I'm working on one called Sparking! A DBZ-Inspired PbtA Game, or just Sparking!
This game is inspired heavily by the things I like about Dragon Ball Z: interesting techniques, loads of transformations, and taking on weird threats from across the planet, galaxy, and universe. It's still a work in progress, with the rules in the game allowing you to very easily play anything you see on Dragon Ball Z up to the end of the Frieza Saga. The plan is to have rules that give you enough options to play with every concept you see on the show and in the manga, either just outright replaying the story beginning to end or taking the specific things you like to create your own stories and characters. The next revision should add different types of Fusion, Time Travel, and Androids as a player species.