Until now, no secret could challenge the Doom reboot's best and most beloved Easter egg: the toy soldier fist bump. But it turns out there's an even juicier hidden item that goes well beyond the game itself. Reddit user Tomcb ran Doom's soundtrack through software to see its spectrogram, which is a visual representation of an audio file's spectrum of frequencies.

The result, if you take a look at the song appropriately titled "Cyberdemon," is an easy-to-see combination of "666" and an inverted pentagram spelled out in the graph. That's a clear sign that video games are using subliminal messaging to turn young children into satanists. Or it's just a really cool wink and a nod from creator Id Software, which faced those very accusations back in the early '90s when it released the original Doom. Here's another video on YouTube that more clearly demonstrates the process of finding the Easter egg:

If you haven't played Doom — and are a fan of either the original franchise or first-person shooters in general — go pick it up. The Verge's Sam Byford called it "the Mad Max: Fury Road of video games," in that Id Software endured a similarly long and troubled development process before surprising everyone with an action masterpiece we didn't know we wanted.

And just for good measure, here's that toy solider fist bump just one more time: