I got sick of the Triple Sephiroth attempts really fast, so I came up with another challenge. Double Sephiroth & Xigbar. It's pretty much a complete nightmare, but I think the video came out nice so I'm going to post it here. I used Trinity Limit once at the very beginning, since I got sick of getting past one of the Sephiroth's first form. If I'm bored I'll try it without using Trinity Limit at all, but I only have so much patience... http://www.youtube.com/watch?v=7UDh4kdKQ_U Enjoy. And oops, posted this as a response to another thread by accident first time.
I know a lot of people wanted to see it, so I'm just going to make a new thread about it. So here's the video of defeating 3 Sephiroths, finally: http://www.youtube.com/watch?v=wYSOrv9_Pqc Unfortunately you have to resort to spamming Reflega, I'm pretty sure it's impossible otherwise, but it's not as easy as it looks, since three Sephiroths' randomly doing DHA is a nightmare. And here's the video of about 1/3 of the attempts it took and how easy it is to screw up: http://www.youtube.com/watch?v=674ZZhAp9fQ
http://www.youtube.com/watch?v=engLExDtZto It's a really fun fight if you're around level 99, try it. I would try three Sephiroth's, but I know I would just have to resort to spamming Reflega to win, which is too cheap for my tastes. So I don't know. Trying to deal with three DHA would be hell, two was hard enough.
I posted this on Gamefaqs and got all positive responses, so I suppose I'll post it here too. I made a guide video to beating Sephiroth in Kingdom Hearts II (Not FM), since there are still people who just can't beat him. I didn't see anything like this on Youtube, so I'm assuming I'm the first to do it. http://www.youtube.com/watch?v=Ir8AXWDg_lY The video is designed for low level challenges against Sephiroth, but works for both low and high.