Since the ROM is in Japanese, you will need Custom Firmware (CFW) like Luma3DS to apply an English patch.
In conclusion, while I understand the interest in playing Monster Hunter XX Double Cross, I encourage exploring legitimate options to enjoy the game. If the game or similar titles are not available in your region through official channels, consider reaching out to Nintendo or Capcom (the game's publisher) to express interest in seeing the game released in more regions or on more platforms. monster hunter xx double cross 3ds rom jpn link
Players often use tools like hShop (a community-driven 3DS eShop alternative) to find the Japanese base game and associated patches. Since the ROM is in Japanese, you will
Monster Hunter XX Double Cross, also known as Monster Hunter XX, is an action role-playing game developed by Capcom. It's the fifth main installment in the Monster Hunter series and was initially released in Japan for the Nintendo 3DS in 2016. The game later made its way to North America and Europe under the title Monster Hunter Double Cross. Players often use tools like hShop (a community-driven