I think I have messed up my game. I had just finished Island 7. I then saved my game and entered this gameshark code for Navel Rock: 82031DBC2502. I went into the island dock and I got warped to the top of the Island, I removed the code and then fought Ho-oh. I then went down the steps and I got warped right back to the top of Navel Rock. I tried flying and using escape rope and nothing happened. I restarted the game and I was back at Island 7. I then used Fly and I got warped to Navel rock. So have I messed up my game or is there a way of reverting it?