The ninja cyborg is the deadliest of all assassins: part flesh, part machine, and all ninja. You traveled into the future before to battle the ninjaborg, and you won. But the ninjaborg's intelligence has evolved. Now you and your friend Nada must travel to the twenty-first century to face this frightening creation again. Shoul you use judo to stop the ninjaborg? Or can you defeat it with a Zen riddle that will tie up its logic systems?
Original title: Ninja Avenger
Genre: Fiction→ Children & Young Adult→ Adventure→ Choose-your-own-Adventure