References in Happy Pretty Cure!

These are the references in the series, Happy Pretty Cure!.

General

 * The idea for the crystals trapping Pretty Cure came from the mirrors in Happiness Charge Pretty Cure!.
 * Also the idea for villains defeating Pretty Cure and trapping them in crystals came from Phantom and how he defeated Pretty Cure by trapping them in mirrors.
 * The series is coincidentally named after Cure Happy.