User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-200.35.249.237-20130210193827/@comment-130804-20130210201404

If you mean arena and the arena mode, then yes, I'd assume so. With (almost) every monster up to high-rank, while the G Rank ones will be via the online section of the game- Tanjia Port (which can be accessed offline regardless of connection, but its the only multiplayer part of the game).