Pixel Gun 3D is a blocky mobile first-person shooter where players collect weapons across modes like team battles and zombie survival, and the Zombie Slayer is one of its distinctive guns. Its reload sound was lifted from gameplay and shared on soundboards by players who wanted the exact in-game audio for edits. It spread through shooter montages, short-form gameplay clips and meme videos that mimic the game's fast, cartoonish combat. It stays popular because it is instantly recognisable to fans and short enough to drop into a cut without breaking pacing.