You can't do a ROM dump?
https://gbatemp.net/threads/tutoria...oras-saves-to-gateway-with-powersaves.378513/
I think you're not looking hard enuff for this? Yes?
If you've been playing this game in classic mode on a 4.5 sysNAND, I'm afraid you'll have a hard time getting the save file.
I have the same problem with smash (Though I don't own a gateway). Your best bet is using the SD card trasfer tool to transfer it to a legit CIA while *in classic mode* (rxMode won't work). So, you'll need to wait for a gateway update, since the transfer tool requires the latest FW.
I played it on my old 3DSXL which didn't have Gateway.
Unfortunately that won't work because it's been played on a 6.0 + system
I played it on my old 3DSXL which didn't have Gateway. By Classic Mode do you mean the classic mode option in the gateway menu?