Kanye West is known for putting surprises in his music, but this may be the craziest one yet. A user named TZ2 on the music forum KanyeToThe noticed that “Ultralight Beam” contains a faint and unexpected sample from the video game Counter-Strike.

One of the game’s weapons is a Flashbang grenade, which causes the screen to go white and stuns your opponents. When you use one, your character yells “Throwing Flashbang” in a distinct voice:

As TZ2 points out, this exact voice can be heard very faintly on “Ultralight Beam” around the 1:50 mark. Between the lines “Somewhere I can feel safe” and “And end my holy war” is the very faint voice yelling “Throwing Flashbang.” You may need headphones to hear it properly, but it’s definitely there:

Here’s the isolated section courtesy of another KTT user named nickkkkkkkkkkkkk:

This isn’t the only video game sample on The Life of Pablo. Kanye also included a credited sample of the announcer from Street Fighter II on “Facts.” However the Counter-Strike sample is not credited.

His next album is currently titled Turbo Grafx 16, which is also the name of a 1989 video game console. Rumors have already spread that Kanye plans to sample a different video game on every track. This remains unconfirmed, but the new album’s video game influence is clear.

You can check out TZ2’s original KTT thread here and read all the lyrics to Kanye West’s “Ultralight Beam” on Genius now.