How do you get Amy into Emerald Coast

From the Sonic News Channel:


Get the statue in front of the Burger Shop, take it to the gates of Emerald Coast. Place him on the right, place Amy in between the two, and have her hammer jump. If done correctly, she will be glitched into Sonic's version. However, to get past the whale, Hammer Jump over the first corner, then stop. Look behind you and the whale should be gone. Continue as normal (However, when you get to the second section, you will be jumping on a spring in a landless area). Getting past the whale may only be in the DX version.