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Stay focus and discover more.
ff is a focus mini game which have over 1000 interesting levels. You have a lot to explore. In this game you've to throw balls on revolving pins. These pins can be move in different direction , can change their strategy randomly and can go more tough and tough. You must have to constantly focus on them , don't miss them , and don't throw more than two balls on same pins.
Otherwise you will fail level.