I've killed Ruby Weapon only once before (And that night I think I was having loads of luck, as I killed Emerald Wepon just an hout before without KOTR, W-Summon, or anything, mainly with Omnislash, Highwind, and many 4x-Cuts) and I've forgotten how ever since. That was about three years ago. Now, I've just given up. I got so very, very, very close... and then the power cut off. I nearly broke my PSone because of it... >.<