Minecraft is a three-dimensional sandbox game that has no specific goals for the player to accomplish, allowing players a great amount of freedom in choosing how to play the game. However, there is an achievement system. Gameplay by default is first person, but players have the option to play in third person mode.
The Wii Homebrew Applications (such as The Homebrew Channel, Emulators, Games, Media players, etc.), USB Loader GX's NAND emulation feature and DIOS MIOS (Lite) require a FAT32 partition format. You can use a FAT32 SD/SDHC card for that purpose and set your USB hard drive as NTFS or Ext partition format.
The above-mentioned Xenoblade Chronicles X file size is only for the Japanese version. The localized version may be slightly different due to different texts and audio files. There are two versions of the Wii U, a basic set that comes with 8 GB of storage while the deluxe set includes 32 GB.