#3 Monster Hunter 3 Ultimate
The 3DS version of the monster franchise that is Monster Hunter has been released in late 2011 in Japan. As is the case with the Wii and Wii U versions, as well as previous titles, MH3U is an action-RPG with a heavy emphasis on hunting great animals in order to piece together much more powerful gear. That way, you get to fight even bigger and more difficult monsters.
The 3DS version is an expanded version of the original Monster Hunter Tri, adding several features. The rather grindy nature of the games is perfectly suited to the portable console, and the 3D capabilities work rather well with the game.