Kakugo comes from For Honor, Ubisoft's melee combat game, where Shinobi is a fast, stealth-focused assassin hero. The short shout is tied to the character's intense fighting style, which is why players and editors lifted it out of gameplay and into short videos. It circulates mainly in gaming edits, fight compilations and reaction clips, where a single Japanese-sounding battle cry can signal readiness without needing context. Its brevity and aggression keep it useful long after its first use, especially for creators who want a sharp, recognisable cue before a clash.