Why? The prevailing theory is .
In the sprawling, lawless universe of M.U.G.E.N —the freeware 2D fighting game engine where Ryu can punch Ronald McDonald and Goku can fight Sailor Moon—few names carry the same weight of mystery and infamy as Lapsus . lapsus m.u.g.e.n
Lapsus M.U.G.E.N is gone, but his bugs live on. If you find an old, unlabeled character file on a forgotten forum, and the file size is exactly 666KB... it’s best to just close the tab. Some ghosts don't want to be exorcised. They just want to play one more round. Have you encountered a "Lapsus" character in your M.U.G.E.N builds? Or is he just a myth born from corrupted ROMs? The answer changes depending on who you ask. Lapsus M