Actually y'know what? I wanna give honorable mentions to a few DS games I emulated over the years.
First mention goes to Pokemon Mystery Dungeon, juvenile as that sounds. It was such a brilliant fucking game. Even the story was kind of emotional, and for a little kid's game, that's not bad. But the best part was just being able to clear dungeons, collecting treasures and bringing them home with you. And recruiting was so much fun, it was a gamble. I still loved the feeling of getting your first few recruits, knowing you will build a great empire from their weak asses. And the sprite work was something else. Even the background tiles were gorgeous (Crystal Cave, Zero Isle, etc.). And it let you make any team you wanted, there were no gym badges to restrict your choices.
Second mention goes to Avalon Code. I played this game blind and had no idea what I was getting myself into. But holy shit, it's really fun. Playing Tetris with a book has never been so much fun (you combine various elements to create different weapons). It was like that treasure hunting/discovery vibe all over again. Not only that but you got to literally juggle enemies in the air. You could time it right to hit them progressively higher and higher into the air, and do more and more damage. There were tournaments and you could just steamroll over everyone by timing your hits. I loved that it broke up the game into all these little sections you could keep coming back to and discovering hidden aspects.