Brain Test Level 152 We need a green ball

Daze Puzzle provides a complete walkthrough for "Brain Test Level 152: We need a green ball.".

By Daze Puzzle /
Question
We need a green ball.
Hints
Hint 1:
Blue + Yellow = Green, Remember that?
Step 1
Step 2
Answer
Tap and hold on the yellow ball and connect it with a blue ball to make a green ball.