Connect Arduino  to power source (laptop/computer) and download Arduino IDE

next you need to download Adafruit BusIO, Adafruit GFX Library, Adafruit NeoMatrix, and Adafruit NeoPixel

connect NeoPixel display wires to corresponding pins on the Arduino Uno board and connect button  wire to corresponding pin on Arduino board

Design and create housing for all of your components, leaving room for the button, displays and the board

start by  making functions for each box and the ball, then you need to program for button being pressed and making the ball move, then program the colors to be random and in the correct place, then program for the boxes of matching color to dissapear when the ball makes contact with the correct box, then once every box is gone make every box come back in so you can play for as long as you want