^^^ It's hit or miss. But that is a typical issue 
As Wiggy says, it is a hit or miss. The ones that do save, don't save the same way regular GBA games saves, the bootlegs *tend to* use batteries.
yea, I have 5 copies pokemon chaos black, none save, and they all have batteries inside of them.
but I have a bootleg FF cart that does save, from the same seller. (got them straight from china CIB for $4 each)
maybe when the retron 5 comes out I can try giving black a play threw for shits-n-giggles
Oh, it ended already? Winning bid wasn't actually too bad, I would've paid that for those games. I'm in the lookout for DKC2 and Lion King, especially. But damn the shipping costs are always such a pain. Just invent some transporters already!
yea I was hoping for more. I should have broke them up but I don't have much time during the week for shipping.
(usually work 6am to 4:30pm M - F with a 20 minute drive to the post office from my job)
Also like I said before I have a spare link to the past I'm about to put on eBay tonight or tomorrow, If anyone here wants it before I list send me a message. $15 + shipping. $15 is like the very lowest selling price right now, they tend to go for $20 - $30