Deimos is one of the central characters in the Madness Combat series, later appearing in Madness: Project Nexus, a side-scrolling action game built around that world. Short voice clips like this one are commonly lifted from gameplay and dialogue, then shared on soundboards and in meme edits because they are instantly recognisable to fans and short enough to reuse. The haha yeah line works beyond its original scene because its tone is so specific: dry, brief, and easy to repurpose as a reaction, which is why it keeps appearing in gaming videos and short-form edits.