Poulpatata is one of two companions to have a nocturnal version, the other one being Dalafa.
The International Music Day 2017 Event revolved around several Poulpatata's, including their king. To date, this is the only event that included interactive Companions.
The smartphone you can buy in the clothes shop in My Candy Love University Life has a Poulpatata charm, which is from Eldarya and the background is Moonlight Lovers - both Beemoov games.
The name of this companion is a probably combination of French words of "poulpa"(octopus) and "patate"(potato).