Mukow was a stormy aquatic planet in the Cerullean Sector. It was home to Emperor Percival Tachyon's Imperial Fight Festival, an exclusive battle resort for Tachyon's most elite troops. Tachyon used the Fight Festival as a means to both entertain his troops, to capture his enemies or lure them into fighting to their deaths. At such an occasion, Tachyon put the Holo Pirate Disguise as a prize in the Festival in hopes of luring Captain Slag there to his doom.