There is no exact letters in Japanese. Japanese kid says “Ita-Zura-Ka Ka-Shi-Wata-Su-Ka” when says Halloween, for example. This is Kanji and Hiragana letters.
If Japanese unruly kid says “Trick or Treat” at Halloween in Japanese. There is no corrective words in Japan. “take a trick or give me candy (sweets), you choose ” in literal translation.