Celebi used time travel and send you back to 2001, a time in which she was a magnificent animation on your site!
I wanted to say something but wasn't sure what, so hopefully this brought a smile to your face, webmaster! *sweat*
If you're curious, I found the animation in the Internet Archive/Wayback Machine in this particular link: https://web.archive.org/web/20010205172000/http://serebii.net:80/index2.shtml
If you don't trust links from new members, I understand if you won't click on this. =)
The alternative path to find this is to lookup the Wayback Machine and insert www.serebii.net/index2.shtml into it, then to check out Feb. 05, 2001. ^^
I enjoyed researching stuff ever since I could remember, so I hope me doing that sorta thing doesn't weird you out.