Try to be first in crazy balls rally.
You cant control ball, but you can control environment.
You have to drag and drop stones and bombs to interrupt other balls.
Tap on stone or bomb near the track and drag it to track.
Wait for good moment and drop it to slow down other balls.
For extra power you have SPEED UP button.
Push and hold it - your ball will go faster, but battery discharge.
Battery charging when ball rolls. Use it carefully :)
Good luck