Raiden's two default appearances are nicknamed "White Raiden" and "Black Raiden." The two reference medieval knights with the white masked Raiden sharing multiple similarities with the ones commonly illustrated.Armstrong even calls Raiden "son" during his encounter with him.
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Both are willing to sacrifice innocent lives for a cause they beieve is greater and both earned Raiden's respect after their deaths. Both are the final bosses of their respective games. Both of them were American politicians and presidential candidates.
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Perfect parries exemplify this, especially at higher difficulties, where one perfect parry can kill multiple opponents at once, in one blow. The style emphasizes deterrent, or winning without fighting, but when you have to fight, it advises you move with your opponents' rhythm, instead of attempting to dominate your opponent. Katsujin-Ken is known as "The sword that preserves life".