Oh yes! I finally found the right size tool to open up the gameboy game on Ebay.(turns out they don't make them anymore, go figure
) So I found the battery loose and exploring the gameboy games memory drive and stuck it back and finally have memory!
First try got A pochitchi & mimitchi & my late, yes late
hashizotchi. He laid an egg for me.(so sweet) He was so sweet when he cried./ramble. For those who want the stats it was before gameboy color and released sometime in 1996.