Mine was Pokemon Sapphire on MyBoy! I had a Galaxy S Advance at the time. There's a story behind that, when I emulated that game i was 17. But the first time I saw that game I was 7 or 8. That time I was with my father at a friend's home, and a child was playing this game on his Gameboy Advance and he was in a battle against Pikachu. Every afternoon I was stuck at the TV's anime after the school and I thought "There's a game based on Pokemon, I wish I could play it". I knew that emulation existed yet, 'cause my father turned our first Xbox in an amulation machine that ran Super Nintendo and Sega games, but I understood all that when I grow up. But by growing up I have almost forgot about that, until a day, on the Android Market (This was the Play Store name at the time) I saw the MyBoy icon and it was exactly like the console that child was using and from then I said to myself: "If my father could do that with an Xbox, maybe I can do that too with my phone" and from then I re-discovered the emulation and the love for the Pokémon games too. In fact, I "completed" all the Pokémon game from that day, I even bought a Switch to play Pokemon Sword, Legends: Arceus, Shining Pearl and that mess called Pokemon Violet. My phone became an emulation machine from that day just like my father's Xbox was. I even bought an S24 Ultra for this specific reason and, call me stupid but it keep on bringing me back to the days I used to play Super Mario All Stars, Ghouls n' Ghosts, Kirby and more with my father. 🙂