i finally cleared it! Waited until could clear enough shields to get within a level of the wallerbies with around 20 moves left, then used the 70 point select 5 gems, turn into power ups, selected gems right above the shields just above the little munchkins, then slid one into the other, took out 14 of them with that move alone, then had enough moves left to snag the remaining guys ... worked out really well and easy...thought i would have to spend more than that...