Eduardo Rivera encountered the Eddie Ghost while he searched the containment universe for Slimer. It seemed harmless enough but Eduardo took a few swings at it and missed. Eduardo headbutted it into submission. Instead of moving on, Eduardo strapped his Proton Pack to the ghost and switched on the Particle Thrower. He sent it charging towards the room occupied by Surt and his minions. They chased after the Eddie Ghost while Eduardo reunited with Slimer.