Question: how to change your name in minecraft wii u?
Answer: On the Wii U Menu, select the Mii character in the upper-left corner to access the User Settings.
Select "Change Mii."
Tap "OK."
Select the method you'd like to use to change the Mii: Select an Existing Mii. Tap "Choose a Mii from Mii Maker." ... 
When you have finalized your Mii, tap "Register" twice then "OK."