Kengo 2 Cheats

Getting alternate stages:
After picking versus mode, then press and hold After picking when choosing a stage at the selection screen. REMEMBER: Only some stages have an alternate version.
 

Unlock the dojo stage:
After picking versus mode, then press and hold After picking when selecting the random option at the stage selection screen.
User Cheat by KendoFirst

Get the alternate Musashi attack:
After picking versus mode, then press and hold SELECT when choosing Musashi at the character selection screen to unlock a two sword attack.