You could create a multi-purpose behaviour that launches the actor towards a random direction within a given limit. By multi-purpose, I mean that this could be attached to each actor, or each piece of "fruit". You could use a scene behaviour to create these actor types at random, and potentially at random intervals, using a "create actor type" block.
From memory, you could try something like this for the actor behaviour:
"Push self sharply towards [random number between '210' and '330'] degrees at 20 force."