Halloween Event 2004
During this event, Heroes could 'Trick or Treat' by clicking on doors in the various zones. Either a treat was awarded in the form of a random inspiration or a trick would spawn various enemies, who came out of the door. Eochai could also be found throughout Paragon City in different levels according to the zones. Eochai was of Monster rank; the Giant Monster rank had yet to be implemented.
One of the treats was the Rock temporary power. It is a one use, ranged attack that does minor smashing damage. Matt Miller was the developer behind this homage to It's the Great Pumpkin, Charlie Brown. 
Six new badges were available for heroes during this event.
You have helped defeat a manifestation of Eochai, king of the Fir Bolg.
You have defeated 20 of the nefarious Vampires who rose from their graves on Halloween.
You have defeated 20 ghosts, spirits who have not rested since their original death.
You have defeated 15 werewolves, supernatural creatures created through the disease of lycanthropy.
You have defeated 50 zombies, the walking flesh of the recently dead.
You have defeated 75 witches, sorcerous crones who use dark magicks.
Six "new" enemy groups made an appearance during the event.
- Fir Bolg