In the Japanese version, the order of episodes has changed from Volume 4. The original 13th episodes of Frogs have been changed to 7th, and the 11th episodes of Pizza Monster have been changed to 8th in Japanese. Since these two episodes are interesting stories, I understand the reason to bring it to the beginning as much as possible, but since Shredder normally uses a Crystal without explaining the special ability of Crystal Power, changing the order of this episode is a child I was confused.