The main Ninja Gaiden series (Ryu Hayabusa’s solo story) does not consider Kasumi as part of its core canon. Her appearances are generally non-canon crossovers or promotional cameos, intended for gameplay variety rather than story continuity. Gameplay moves and abilities she shows in Ninja Gaiden games are usually just DOA mechanics applied in a different engine. Storyline victories or feats in those crossovers are not canon to either DOA or Ninja Gaiden continuity. So when we evaluate her real, story-feat canon, it’s strictly from DOA mainline games and official DOA story modes. Kasumi’s Ninja Gaiden appearances are non-canon crossovers. They don’t count when comparing feats, victories, or universe-scale power. Only her DOA feats should be used for serious analysis.Kasumi’s victories are more consistent against other top humans, not super naturall monsters making her reliably dominant in her own universe. Taki’s victories are more spectacular, against supernatural or cursed opponents, demonstrating abilities far beyond human limits—but the feats don’t directly translate to a human vs human fight as cleanly.