Luna Girl becomes the second villain to be in the PJ Masks Headquarters.
She also becomes the only villain to be invited inside their HQ.
This is the third time the PJ Masks say "PJ Masks, we're on our way, into the night to save the day!" in their pajamas. The other two in were "Owlette and the Battling Headquarters" and "Supersonic Owlette".
This is the first episode where there is no daytime.
This marks the first time the PJ Masks don't wear their daytime outfits.
This is the third episode that focuses on a villain, but this time it focuses on Luna Girl.
The first time was "Romeo's Disguise", and the second time was "Robot's Pet Cat".