Ouch. Anyway, I thought I'd chime in, the way you use the motion controls is, after you've sufficiently kicked the ass of whatever enemy you're fighting, you press R1, and a band of energy connects you to them, and you yank the Sixaxis backward, and it yanks their soul out.
Variations--if you kick more than one enemy's ass at a time, and you can see their red soul poking out, then you can hold in R1, and gradually an energy band will connect you to them all, one by one, then when you yank you get ALL their souls and what I believe is an EXP bonus.
-----Also, during soul yanking of tougher enemies and bosses, it turns into a minigame, and you have to yank every time their soul turns green. I think green. And you have to wear down a kind of life bar that recharges gradually by timing you yanks just right, then at the end it makes you give it an extra big yank, and it pops out.
Hmmm.....that whole description makes that game sound.....naughty.....