Kengo: Legacy Of The Blade (PlayStation 2)
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Alternate Musashi attack
Select versus mode, then hold Select when choosing Musashi at the character selection screen to unlock a two sword attack.
Alternate stages
Select versus mode, then hold Select when choosing a stage at the selection screen. Note: Only some stages have an alternate version.
Dojo stage
Select versus mode, then hold Select when selecting the random option at the stage selection screen.