Ghoul Hood

Ghoul Hood is a boss-summoning item in Pixelshift that summons Nak. It can be dropped from Slimes at a 1-in-20 drop chance. However, it can only be used in the Crimson Islands or in Underworld. If the player tries to use it anywhere else, they will be greeted with the following message;

Hmm...

Maybe I should use this in the islands of red...

But where would that be...?

Using the Ghoul Hood in the Underworld will summon the Fire Demon.