Press every button and move both sticks. Each control on the picture should light up or move as you use it. The faint dot is the raw stick reading; the gold dot is what the kaleidoscope uses after centering and the dead zone. While this screen is open, the controller only tests and does not change the kaleidoscope.
If a stick drifts when you are not touching it, let go of both sticks and press Center.
Off: the triggers work like gas and brake and the speed springs back when you let go.
Press Change, then press the button (or move the stick) you want for that job. Esc cancels.