Controllers :

left click and drag to SWING the ball

right click to switch the ball's color 

Tips :

the obstacles have three colors 

RED - GREEN - BLUE 

use the switch to match your color with the obstacles 

BTW , you only have 2 colors : GREEN - BLUE 

THANKS TO :

Swissou , SmailoDZ , Pexpex , Safiro and Papo for the inspiring ideas and for there support