You guys are taking a lot of "out of context" battle conditions into consideration. Why don't we then point out that in the first few confrontations with Beatrix (if I remember correctly) it is impossible to defeat her. However any time you confront Sephiroth (FF7 endboss/KH1 [and 2?]) it is possible to kick his ass. Eventually. He does have a hitpoint pool. He wasn't programmed to be completely undefeatable like Beatrix. Now can we start thinking a little more realistically? Or should this be the final point to put the last nail in Sephy's coffin? Unless of course he flew, sliced some buildings, and ran away...