Samurai Showdown II questions

First of all, i'm at work and don't have time to do a search, so i'm sorry if this was asked before.

What good is the ultimate transformation moves? The only one i know how to do is for Jubei and it didn't do anything but make him funky looking and take my pow bar down, is there something i'm missing? My game did not come with the instructions and I'm playing it on a Neo Geo CD if that makes any difference.

Thanks.

They're just there for the fun of it-(At least to my understanding) Like a taunt. If they serve any other purpose, it's news to me.