I can't seem to get the big combo medal. I've tried both ways in the guide and nothing. This damn sonic gun takes too long to charge to keep a combo going and good luck shooting those powerlines in a rush to keep a combo going! edit: Just got it. Go into the challenge room after competing the game and get a combo score of 1500 and finish the round.
Last edited by Alucard Drakul; 03-26-2013 at 01:08 AM.