The number 340 in M.U.G.E.N builds is largely historical. A specific uploader in the early 2010s on a now-defunct forum curated a collection of 340 characters that were "tested to not crash the engine." That specific .def file (the roster configuration) became a benchmark.
: True to its name, the game features a curated selection of 340 playable characters . This includes staples from the "Big Three" ( Naruto , One Piece , Bleach ) alongside fighters from Dragon Ball Z , Fairy Tail , Hunter x Hunter , and many more obscure titles. anime mugen 340 characters full