Instead of game ids Wii U games use title ids. They consist of two 32 bit values and are non-ASCII. Here you should be able to find every game's title id: http://wiiubrew.org/wiki/Title_database
Just in case somebody is wondering:
The notation EUR, USA and JAP will be used for readability instead.
Just in case somebody is wondering:
The notation EUR, USA and JAP will be used for readability instead.