When Sonic and Amy are resting under a tree, Dr. Eggman came up from nowhere and shoots a non-living thing beam on Amy, causing her to paralyze. Eggman then takes off her ears and hair, boots, dress, gloves and helmet to make himself look like Amy. After noticing Sonic had woke up, Eggman calls him with a girly voice. Sonic then chases Dr. Eggman, who is still wearing the disguise. After reaching the place where Dr. Eggman is, Dr. Eggman takes off Amy's clothes and says Happy Birthday to him, Sonic looks confused, so Dr. Eggman tells him that it is his birthday party, and all the guests (who were Sonic's past enemies), are also here, from left to right: Shadow, Knuckles, Eggman Nega, Rouge, Tails, Silver, Metal Sonic, Omega and Jet. After defeating Dr. Eggman and Mega Sonic, Sonic and Dr.