The Japanese phrase ikiri describes someone acting cocky or like a know it all, and shiten means point of view, so the title itself sets up the joke. No clear original source, creator or year is documented for this specific clip, so its life is mainly online as a short gaming reaction sound. It circulates in edits and streams where a confident attitude is the punchline, rather than the gameplay itself. That simple, readable idea has kept it useful across different games and contexts, even without a famous scene behind it.