This is actually pretty hard. You might get lucky and have an amazing run on the third mini game of "Clash of the Giant Salamanders," but this is actually quite a large number for the amount of time you have. But, you can make it easier. Just start the game with two players, but only have one person actually playing. This eliminates the recharge time for the rock piles and will allow you to just quickly go back to the other side when you are done. That makes it pretty easy on the third mini game. Not only that, but it is harder to build up a roar when you only have one person playing two parts.