Fact-Promins were first mentioned in this episode.
The moment in this episode when Bug-Boatmin spanks his bottom at Yuto, Wanda, Mighty and Masato makes a referance to a scene from the 'Pokemon' franchise's 'Pikachu' mini-movie 'Pikachu & Pichu' when one of the Pichu Brothers spanks his bottom at a flock of Murkrow.
English dub changes
Note: All characters are listed in order of their first appearances in the episode. The time they appear is the time from the Japanese dub..