This game is REGION LOCKED & WILL NOT work on United States or other consoles that are not the same Region that is required. Monster Hunter G Nintendo Wii Japanese Region Lock | eBay

The English patch is a comprehensive fan-made overhaul. It doesn't just translate menus; it makes the game entirely playable for those who don't speak Japanese. Key features of the patch include:

Usually distributed as Riivolution patches or xdelta files.