在前往神秘的星落岛的途中，刺猬索尼克和“尾巴”迈尔斯首先要去接他们的朋友艾米·罗斯。可惜艾米正在和艾格曼医生的坏蛋打架!蛋人在这里做什么，为什么他表现得很奇怪?这些只是第一个谜题在这个独家的游戏序言，音速前线!
On their way to the mysterious Starfall Islands, Sonic the Hedgehog and Miles "Tails" Prower first have to pick up their friend, Amy Rose. Too bad Amy's in the middle of a brawl with Dr. Eggman's badniks! What's Eggman doing here and why is he acting strangely? These are just the first mysteries in this exclusive prologue to the game, Sonic Frontiers!
