: The EUR version typically includes more language options (Italian, German, etc.), whereas the USA version usually sticks to English, Spanish, and French.
: Use the physical buttons on the cartridge to cycle through games until Sonic Lost World appears on your 3DS home menu. Regional Differences (EUR vs. USA) Sonic Lost World 3DS ROM (EUR/USA) (Gateway/Sky...
: Launch Gateway mode from the system menu. Once in, press Select to bring up the game selection menu. : The EUR version typically includes more language
: Copy the .3ds ROM file onto a FAT32-formatted microSD card that goes into the Gateway Red Card . Sonic Lost World 3DS ROM (EUR/USA) (Gateway/Sky...