help

I need an auto color clicker for a music notes game on my phone, the game only has 2 types of notes one is a note you click on and the other is a note you have to hold down for some time . the notes have a brown color and also it also has a feature where the screen is segmented into 4 parts - the upper one gives 1 point , the middle one gives 2 points , the bottom one gives 3 points and the lowest one gives 4 points but i just need the program to run indefinitely so it doesn't really matter if you program it to click only in a specific part of the screen, and the game is played in chrome not downloaded from google play store.