This does not seem to work for me on the Wii U Pro controller or the Wii U gamepad. I can only skip the last 10% or so of each intro sequence. I welcome any further comments.

Hello, I have been running the 100 Mario Challenge Easy category but have been unable to figure out how to do the intro skips (1. Skipping the goombas carrying Peach to the castle and 2. Skipping the 100 Marios running onto the screen prior to the first level starting). Would someone please tell me which button(s) to press to effectively skip these sequences? Thanks!