So I just got 2 Sky3ds cards for my girlfriend and I, and downloaded Animal Crossing New Leaf onto them. It worked perfectly fine for my girlfriend, but I had trouble with it right from the start. The game kept saying "gamecard removed" at the same time, every time. I reformatted my micro SD card and somehow it managed to work. Later, when I tried to open the game again, it just got stuck on a black loading screen with a train in the bottom right. Why isn't it working for me?