To turn on the power, you'll either need to find a key to open the main power door, or buy you way to the switch by going the long way around. The long way would be through the roller coaster area, which leads to the back side of the power "room". The key for the door (which also opens the back door of the Funhouse) spawns in 3 possible spots.
The key can be behind ANY of the 3 doors that are available to open right at spawn
In the World of Tomorrow door, the key will be to the left on the ground next to the bench.
If it spawns in the middle of the map in the concession stand area, it will be directly around the corner on the ledge, next to the stuffed animal for the Easter egg song.
If it spawns in the Bumper car area, it will be on top of the blue bumper car closest to the next debris.

In order to open PaP, you need to fill the 3 soul chests that are spread throughout the map. There is one located in the moat in front of the castle, one on the tilt-a-whirl by the drop tower and the ufo, and there is one on the 2nd floor of the Funhouse.
Keep in mind that whichever chest you do first takes the least amount of zombies, and each chest after will take more and more souls to complete

I strongly recommend checking out these video guides created by my map testers -
N.S.S.G Elwood's Guide
RedBullet379's Guide
Text Guide
(I won't be covering shield parts, but they are in the video guides!)
To start the main EE, you need to collect 5 pages. They can be found as follows:
-on the carousel at spawn
-inside the dragon's den
-2nd floor of the castle
-behind the rocket, on a bench
-in the lot behind the funhouse
After collecting all 5, you need to place them on the circle painted on the 2nd floor of the funhouse.
Doing so will reward you with a Max Ammo, as well as spawn a special intervention outside, next to the Carnival truck.
This Intervention in specific is required for the next couple steps, so don't get rid of it until you complete them! If you accidentally do, it will be in the mystery box after you've placed the pages.
Next, you'll need to Pack a Punch this special Intervention. You'll notice that it behaves a little differently from the normal one. Now, you'll need to locate and shoot 3 skulls with it. They're located as follows:
-On the seat of the drop tower ride
-in one of the carts on the ferris wheel
-on top of the cement wall in the middle of the map. Best seen from the 2nd floor of the castle, looking slightly to the left of the funhouse.

After you've collected all 3 skulls, place them with the pages inside the Funhouse

After placing them, you'll receive a Free Perk powerup! Next, locate the book that has now appeared underneath the bridge in front of the castle. Shoot this with the Intervention to pick it up.

At this point, you no longer need to keep the Intervention if you don't want to! Keep in mind it does NOT kill spiders, and there will be a significant amount of them during the next step

Now that you have the book, placing it with the rest of the items in the Funhouse will teleport you to a dark ether version of the bumper car area. You need to survive here for 2 minutes . While you're here, you also need to pick up the Keycard located in the middle of the circle on the ground.

After your survive and teleport back to the map, you can use the keycard to open the door behind the UFO. This allows you to access the buyable ending, as well as a Hells Retriever.

For the side eggs guide, please refer to this video - here

Shootable Stuffed Cows
These are the only side egg that isn't part of the video guide, so I'll go over those. These are a music egg with Copyrighted music!
If you're not recording or streaming and want to continue, you can find the 3 shootable Cows as follows:
-on top of the bathroom building by the UFO/Tilt a Whirl
-on top of one of the castle cylinders near the rollercoaster, can be seen from 2nd floor funhouse
-inside a zombie spawn/concession stand towards spawn. Directly behind the Carnival/Delivery truck

Thank you for playing my map and I hope you enjoy it! Remember to report any buys you find in the appropriate discussion so I can fix them A.S.A.P!