Ball Run 2048: merge number

Ball Run 2048: merge number is a ball game where you have to make the numbers on the balls bigger.
Control the balls with your finger to make them merge with other balls of the same number! Each time the balls are combined, they get bigger and change color. The number on the ball starts from 2, when it merges with a ball of the same number, the numbers are added and grows up to a maximum of 2048. Even children can complete the game, but it is very difficult to reach the goal at 2048.
Control the balls so it does not fall off the course or hit obstacles and try to reach 2048! Can you make a rainbow-colored 2048 ball?