The Demon Mask is a festival hat obtained during the Dragon Festival 2007 finale held in Shing Jea Monastery. Emperor Kisu arrived every two hours, rewarding a Demon Mask in exchange for 250 Victory Tokens taken from the player's inventory. For the week following the end of the event, the mask could also be obtained by exchanging 250 Victory Tokens with Imperial Supply Master Kagno. Since 2012, it can also be obtained by exchanging one Imperial Mask Token with Imperial Supply Master Kagno during the Dragon Festival.
- Cannot be dyed.
- Unlike most festival hats, a Demon Mask obtained before the December 17, 2009 update can be upgraded with an insignia.