Wii U secrets: The R3 and L3 buttons don't have names!
You know those fancy buttons underneath the left and right sticks on the PlayStation 3 that are called R3 and L3? They don't actually have any names on the Wii U. The in-game documentation via prompts in Nintendo Land and Ninja Gaiden just say "Hold R" with a picture of a stick that has two little arrows above it. I think this is similar to what the 360 does maybe?