Not to be confused with Anniversary Keys, Event Keys used to access the Party Room during Anniversary Events.
Party Key is an item that was used to unlock the Party Room during the 100th Update Event, which entrance is located below the bridge between the Forest and Blox City. The Party Key can be obtained by completing 100th Update Shelly's questline. Party Key cannot be burned in the Incinerator at the Junkyard and is non-tradeable.
Inventory View
Inventory View
Party room