The PJ Crystal Totem (referred to as the HQ Crystal or PJ Crystal in the series) is a crystal totem that contains supernatural powers for the PJ Masks' superpowered pajamas and PJ Masks Headquarters. Although it debuted in "PJ Power Up", it is unknown how the crystal is created and how did it get in headquarters.
In "PJ Power Up", the PJ Crystal Totem was discovered by PJ Robot in headquarters. He then knocks the crystal off its pedestal by accident while calling Owlette, which causes her to go blind for a bit and then makes the Ninjalinos easily defeat her and the other PJ Masks by throwing Sticky Splats at the PJs while they lose their powers and costumes, and revert back into their normal pajamas. However, it was then resolved when the PJ Masks saw it for the first time, put the crystal back into its pedestal, which allowed the team to regain their costumes, and obtain new powers from the crystal to defeat Night Ninja.
In "Power Pondweed", the crystal doesn't make a physical appearance. Instead, it is mentioned by Romeo, who said that its energy powered up a batch of pondweed in the moat, turning it into what he calls it Power Pondweed, and he wanted to use it to take over the world.
In "Heroes of the Sky", Romeo uses his Fly Bots to steal the PJ Crystal Totem to create multiple flying factories to take over the world. When they carry it to the Sky Factory, however, three smaller crystals, known as "PJ Power Crystals", fall from the PJ Crystal Totem as it gets carried into the factory. The PJ Masks later retrieve it from Romeo, alongside other crystals stolen from both them and Luna Girl (such as Motsuki's crystal).
The PJ Crystal Totem is also known as the Super Crystal (in French).
In "Heroes of the Sky", it is revealed that when an animal part of the crystal is drained of its power, the PJ Mask associated with it will lose both their powers and their memories associated with being a PJ Mask.