Bored at work? Stuck in family dinner? Try this amazing game! Create an exclusive double toothed roller crushing machine by tapping the buttons and switching various themes! It's a game you can't stop playing, You need to turn your brain on and find a way to maximize efficiency. You can add more gears, increase the number of teeth, increase the speed of the gears, or increase the gravity and etc. Just play it now ,earn more gold for yourself. Feature - Easy to play - Endless gameplay - Offline playing - Abundant choices of upgrading and boosting