Really?!? The inputs are turned on for the whole video. And he explains the button inputs with text as well as graphical inputs in the background. Just watch the video a couple more times. The directional inputs are shown a ton of times starting at 0:38 and most of the rest of the video is about plinking for different options, each with text descriptions of buttons used as well as graphical depictions and showing his hands doing them.

Or something like this:
:360::mp::360::lk::360::360::mp::360::mp::360::hp::360::mp::lp::360::lp::3p::360::3p::360::360::party: