Does anybody know how to fix older virtual pets? I just got a Rikou Rikou Chan in the mail and, of course, it doesn't work. I opened up the whole thing and I don't know anything about fixing the inside of them to get them working again. There were batteries in it when I received it, but it doesn't look like it's been corroded. I just payed quite a bit for it and was really hoping it would work. Any help would be greatly appreciated!!