One MUST purchase extra moves in order to pass this level. The keys are programmed to drop on moves 31, 26, 21, 16 and 11. That will unlock the fruit, however in order to unlock the bottom mystery candy you still have to wait for 2 more keys to drop or try to move the fruit to the side both of which make it impossible to pass. In order to pass this level you MUST purchase extra moves. There is simply NO way around it.
I am now boycotting This game and any other King games to protest this type of trickery.