If there’s a Mount Rushmore of so-bad-it’s-fun cinema, Godfrey Ho is etched into the granite with a katana. And his 1984 film Ninja Thunderbolt is one of his most gloriously incoherent offerings. Slashed together from various incomplete projects and a few scenes of stock footage, entire sequences are unwatchable, filmed in pitch blackness with ninjas flailing about in the dark. There is even a jar...