Extracting Contents of the Wii U Games for Help

I want the tools for extracting the contents of the Wii U games (animations, models, and so on). I want to extract the contents that are based on something like CHR0, MDL0, SRT0, and stuff like that.

Games that I Can Think of:

Mario Kart 8
Hyrule Warriors
Animal Crossing - amiibo Festival
Pokken Tournament
Super Smash Bros.

How can I do it?