I have Been very frustrated by Pokemon Emerald. I like uber Battling so Kyoger, Rayquaza, and Groudon would be Helpful. I bought a used Emerald and Played it in My DS's GBA slot. Unfortunately the game keep erasing due to Corrupted or damage so I bought another new one and the something happened. I Changed the internal battery of the cartridge thinking it died and I played it in My Gameboy Advance SP and it worked fine, until I tried to Transfer my Pokemon to Diamond. The save file once again was erased. anyone Know why?