Find the jail cell with a colorful movie poster hanging on the wall, near the Warden's Office. Throw the Hell's Retriever at the poster and it will come off revealing a hole in the wall.
Enter Afterlife Mode. There is a portal entrance at the end of the row of cells near the Warden's Office. Enter the portal and zap a spoon lying on the floor to the right of a large crack with a skull in it. If done correctly, the player will hear the Demonic Announcer laugh.
Enter the cafeteria and proceed to the barrier at the back of the room. There is a table against the left wall inside the barrier. The spoon will have teleported on top of the table. Throw the Hell's Retriever at it. If done correctly, the player will hear Brutus. (Note: This step must be completed for each player who wishes to obtain the Golden Spork.)
Enter the infirmary and locate the lone bathtub filled with blood opposite a Mystery Box spawn. Hold the action button when next to the bathtub. A silver spoon will appear and stir the blood. (Note: This step must be completed for each player who wishes to obtain the Golden Spork.)
Enter the underground showers and kill zombies using the AcidGat (It does not need to be Pack-a-Punched.) When the correct amount of zombies have been killed by the AcidGat, the Demonic Announcer's laugh will be heard once again.
Re-enter the infirmary and return to the lone bathtub filled with blood. Hold the Use button and a zombified hand will raise out of the blood grasping the Golden Spork. Press the Use button to take the Spork, and it will be removed from the hand. (Note: This step must be completed for each player who wishes to obtain the Golden Spork.)
Trivia
The Golden Spork currently does the damage equivalent to 5 Galvaknuckles, making it a one hit kill weapon up to and including round 33. It is currently the most powerful melee weapon in Zombies history, and the most powerful weapon ever in zombie mode, apart from every one-shot kill Wonder Weapon, and the Pack-A-Punched Scavenger.
