1Pokefanmum82Mon 26th Feb 2018 I just found my old 3DS XL and I want to do a system transfer but I already have a copy of New Leaf on both my 2DS XL and my old system. What happens if I do a system transfer. Will I lose my progress in both games? Want: Mario Party Top 100, Atlus games, Psychic Spectres for the 3DS. For the Switch Kirby Star Allies, Yoshi and many others. Finished the Alola Dex. Now playing Stories, Crystal and Ultra Sun.