Unlike other songs you might have unlocked so far in Call of Duty: Black Ops 4 zombies, the Easter egg song in Blood of the Dead is unlocked a bit differently. Instead of shooting coins around the map, you’re going to need to complete a few other steps to unlock the secret song in Blood of the Dead, all of which we’ll walk you through below. Here’s what you need to know to unlock the secret song in Blood of the Dead for Black Ops 4 zombies.

Unlock the Secret Song in Blood of the Dead

In order to unlock the secret, Easter egg song in Blood of the Dead players are going to need to complete a few specific steps that will require them to build the Spectral Shield as well as obtain the Warden’s Key. We’ll go over everything you need to do to complete these steps, all of which we have outlined plainly below. Once you’re ready, dive in and let’s get started.

The first thing you need to do is obtain the Warden’s Key. This is an item that can be obtained by defeating the massive Warden mini boss that spawns after you turn on the power at both switches in Blood of the Dead. Keep in mind that he may also spawn before you have finished activating both switches, and if he does, he will also drop the Warden’s Key when you kill him.

Once you have the Warden’s Key, it’s time to dive further in and complete the Spectral Shield. We walked you through this process in our guide on how to Pack-A-Punch in Blood of the Dead, so make sure you check out that guide for more details on the locations you should look for those parts.

With the Spectral Shield completed, it’s time to charge it up. You can do this by killing enemies using the Spectral Shield. Once it’s charged, make your way to the bottom of the steps in the Citadel Tunnels.

Here you need to unlock the cage here and use the Spectral Shield to charge the panels inside. We’ve seen information out there from several that you need to input the numbers 1 – 1 – 5 into the panels to trigger the song, however during our playthrough these numbers did not work. We’ll update our guide with more information when we obtain it.

Now that you’ve started up the song, get back to killing those zombies coming for you. You can also learn how to get the Gold Spork, a one-hit melee weapon available in Blood of the Dead, or even head back over to our Black Ops 4 guides for more helpful articles.