Amy Rose

When Nate Morgan and the Freedom Fighters were getting ready to go to the Hidden City of the Ancients (aka Station Square), Amy wondered if she could come along as well. But Sonic and the others were totally against it, saying that Amy was too young. Amy, sad at not being old enough, walked around Knothole until she came across the magical Ring of Acorns and touched it, wishing to be older. The ring granted her wish and although she aged physically, she still had the mind of a ten year old. After this Amy once again requested to join the Freedom Fighters, but was denied again by Sonic, who told her having an older body wasn't enough; she still had the mentality of a ten year old, and had no fighting experience. But Nate, wanting to examine her, thought that she might as well come along.

When the group arrived at Station Square, Amy marveled at its glory and, while exploring, came across a Flicky being attacked by two of Dr. Eggman's newest robots. Amy tried to save it, but the robots kidnapped her and brought her back to Eggman's Egg Carrier. But when E-102 Gamma checked on Amy in her cell, she was the last piece of the puzzle to giving Gamma sentience, and so he freed her. Later, Sonic, who had also come with Tails to save Amy, battled Gamma and was about to deliver the final blow when Amy stopped him, saying how Gamma helped her. Sonic agreed to not destroy Gamma, who then evacuated the ship along with Amy and Tails. Amy had later helped Sonic and the other Freedom Fighters battle Perfect Chaos.

Amy continued to help the Freedom Fighters with certain missions. Eventually, her cousin, Rob O' the Hedge, came to visit her and thought Antoine's father, the former High Sheriff of Mercia, was still evil. He later learned the General had indeed turned around, much to the joy of Amy, Antoine, and Bunnie Rabbot. Amy was present during the Mobian's counterattack against the Xorda.

A year later when Sonic returned to Mobius, Amy was awarded a medal and became a Freedom Fighter by Sally after assisting in the defence of Fort Acorn. Sally thanked her for her service to help the Freedom Fighters, and Amy was overwhelmed by happiness that one of her wishes finally came true.

Amy, now an official Freedom Fighter, helped the heroes of Mobius even more, with such examples as fighting the Metal Sonic Troopers and helping in the battle against Mammoth Mogul and Ixis Naugus. Amy also showed jealousy towards Fiona Fox, who was Sonic's girlfriend at the time. When Tails told Amy that Fiona was cheating on Sonic with Scourge the Hedgehog, she instantly attacked the treacherous fox. But Sonic was able to calm down Amy before talking to Fiona about whether or not she really was cheating on him for Scourge, which is when the green hedgehog arrived. Sonic fought Scourge and Fiona, and when Amy and Tails decided to help, the diabolical couple fled. Amy was also present when Antoine proposed to Bunnie and was the flower girl for their wedding.

After Sonic and Sally's breakup, Amy has begun to show her love for the hedgehog once again. After the death of Tommy Turtle, Amy sought out combat training from the former Dark Legion soldier Julie-Su. When Julie explained that Amy should want this training to better herself rather than to impress Sonic, Amy replied that she did want to better herself - so that no one else will be more worthy of Sonic's affection than she.

A while later, Dr. Eggman's Egg Fleet attacked and destroyed Knothole and captured everyone except for Amy, Sonic, Tails, and Knuckles. While initially distraught, she immediately took part in the rescue mission; with her Piko-Piko hammer, she and Knuckles destroyed the Egg Grapes and freed several captives. She, along with the other Mobians, was soon teleported to New Mobotropolis. After the escape she was shown supporting Rotor, whose back was injured during the initial attack. She then helped the other Freedom Fighters and Chaotix battle the Egg Beater which they were able to destroy.

When Enerjak arrived at New Mobotropolis, Amy joined the Chaotix and Freedom Fighter's attack. Some time after the Enerjak crisis had come to an end she assisted Sally in defeating Nack the Weasel and help her rescue Sonic from Mammoth Mogul.

After arriving back at Freedom HQ, the Suppression Squad invaded Mobius Prime, and Amy went after Patch while the other Freedom Fighters battled the rest of the group. Later, Amy was chosen to accompany Sonic to Moebius to help find assistance against the Suppression Squad. Upon arrival, Sonic and Amy were attacked by Buns Rabbot in her Omega Care Unit. Fortunatly they were saved by the timely arrival of Anti Robotnik. Buns apologised as she thought Sonic was Scourge because she couldn't see colours too well in her suit. They later went outside to discuss the situation, after Ivo gave Amy a warm welcome to the Anti Mobius, Kintobor revealed that Scourge had stolen the Globe Posts he created to travel to other zones to find new medical techniques to help Buns. Amy suggested that Kintobor could make more Omega Care Units to defeat the Suppression Squad, but he refused to build an army. Buns jokingly said that they should try and recruit "you-know-who." Kintobor said that it was out of the question as she is far too dangerous. Amy pleaded with Kintobor to tell them who he was talking about to help. He grudgingly revealed information about Rosy the Rascal and how she hates Scourge. Kintobor tried to delay them by making sure they were in perfect condition for their journey, but they soon headed to Castle Acorn where Rosy was likely to be. They attempted to convince Rosy to join them, but she proceeded to attack them.

Buns and Amy fended off Rosy while Sonic went back to Mobius for assistance. However, the Freedom Fighters and Suppression Squad were too busy fighting off Scourge the Hedgehog, with Scourge's "allies" having betrayed him. Amy then shouted at Sonic to hurry back to Mobius, before Rosy went any more crazier. After Sonic was sent back to Moebius with Scourge by Boomer and Miles, he realized Amy and Buns had already been defeated by Rosy Rascal.

Amy went to check on Buns who had enough power to get to Dr. Kintobor's tower, and told her to give Rosy a good butt kicking from her. The fight was interrupted when Shadow arrived using Chaos Control. Metal Sonic arrived later followed by Silver and Rob O' the Hedge. Amy greeted her cousin Rob, and later joined in the combined attack against Scourge. However, Scourge turned the tables on everyone, using the Anarchy Beryl in his throne to transform into Super Scourge.