: To combat alien threats, players unlock "Souls"—animalistic spirits that grant massive power boosts, replacing the "Fighting Spirits" used in previous games. Big Bang Version Exclusives
While ROMs are a popular way to preserve games that are not available in certain regions, the legal standard is that you should from a physical cartridge you own. If you own a physical Japanese copy of the game, you are legally entitled to create a backup copy (the ROM) to play on an emulator. Downloading ROMs from the internet without owning the game violates copyright laws. inazuma eleven go galaxy big bang 3ds rom do full