Complex sentence: Note: there are many other Kyokushin groups exist outside of Japan with some operate based on the full Kyokushin principles and some have either combined other styles or eliminated some of the techniques or Kata forms from their syllabus.
Split into simpler sentences: Note: there are many other Kyokushin groups that exist outside of Japan. Some operate based the original Kyokushin principles and some have combined other styles, or eliminated some techniques or kata forms from their syllabus.