Well, kinda. I had this memory card with a USB port on it. It allowed you to copy saves to and from a PC. I also have the Japanese version of Animal Crossing (the non eReader one). For the Japanese game, you can write yourself letters to get all the Famicom games. I got all the games this way, and copied my save to the computer. I forget exactly how I did everything, but I think once I copied the save where I had all the games in my inventory, I went back to the game and dropped them on the ground. Once the save was on the computer, I could delete the now empty inventory save off of my memory card and put the PC save back on my card. Doing this multiple times could give me multiple copies of each game/ item. Through trial and error, I figured with a hex editor that out I could paste the "header" or some part of the beginning of the US AC travel data save into my Japanese travel data, and it would work on the US game! Some of the items would be glitchy and not work, which is why I gave myself multiple copies of each game I needed. It would give me the US equivalent of the Japanese game or item. Once I did this, I was able to make "clean" copies of these games and stuff using only the US game. I gave people either travel data or a new save town with all the games, whatever worked better for each situation.
I can give you travel data with everything on it, but it would be a while before I found my game, my save data and everything else.
I made a video of my Japan to US conversion, but who knows where that is these days.
