Cascade

Best answer as chosen by Asker / Ratings
Well, the best way feels like you're button mashing,(For those who don't already know, button mashing is repedetive button pressing and not knowing what it does; or repedetive use of the same attack.), but it's the best way. First fall back,(Run away!! Lol), wait for him to run at you, then SLASH AWAY!!!(forward, a) Do that, even when he's on the ground, until his life is 1%, then use the ultimate special attack combo!!! To do that, press b,b,x! Just attack twice, than use your speicial, and KABOOM!!!!!!!!!!!!!!!!! He's dead. This combo works with everyone! You just got to time it right. Kabuto is basicaly imortal until you use your special. And make sure he can't substitute first.

Have fun PK'n people with a virtually undogeable attack!!!!!!!!!!!!!!!!!
(player kill)

P.S. I use gamecube controlers, and refer to them.