How defeat big swell in sonic rush adventure

when he sends missles, you jump on one side to make them go to that side. defeat cannons shield then jump in and go into the cannon. press a when time is right. after doing that about 5 times he comes down. before the white comes on you, ( and don't jump into the laser!) quikly ump on its head! BINGO! YOU'VE WON!~