Hyper Dragon Ball Z is a freeware game developed from the M.U.G.E.N engine by fans of the anime dubbed "Team Z2". The gameplay focuses on the mechanics inspired by Street Fighter and Darkstalkers with other fighting games thrown into the mix (like Marvel VS Capcom and The King of Fighters). Initially beginning as a simple brand of Dragon Ball Z characters to go against the traditional Dragon Ball Z characters introduced into M.U.G.E.N. so far (overly flashy, broken, suffering heavily from Sturgeon's Law, etc.), the Z2 team of Balthazar (idea conceiver) and Cybaster (primary coder) expanded to include various others, including inspiring some other smaller projects in the team's honor. It's come to the point that a game based on the Z2 characters was realized, and the roster expanded from Goku and Vegeta to many more.