Ninja Hattori‑kun Plus Perman: Chounouryoku Wars is a crossover film that unites the worlds of Motoo Abiko’s Ninja Hattori‑kun and Perman. The two casts become embroiled in an ESP battle when they aid a psychic girl named Yuri, whose homeland was destroyed by an evil psychic who seeks to capture all psychics worldwide and use them to seize global domination. The film premiered as a double feature alongside Doraemon: Nobita no Makai Daibouken.