your best bet would be just press square, triangle, and circle at the same time. Repetedly that is, so you don't miss it. Most likely you'll go into a beam battle, if you do, you press triangle as fast as you can. that way you win.
if you can't figure that out, which i'm sure you can, search on google for help. I've done that and it really helps... besides, if you have the Japanese version, I doubt you'll be able to read the handbook... like me..