I keep seeing questions about the Pokeball Plus (PBP) so here's a detailed guide of all the features. There is a button on top (B) and a button when you click down the Control Stick (A). The PBP also measures shaking as an input and has a rumble motor. There is a small reset button on the black band of the PBP, on the back, to the right of where the strap attaches. (Small black reset button just reboots the ball, data is preserved. Very handy if the PBP does not want to connect to your phone or Switch right away.)