European & AmericanRobotnik Returns!
All was peaceful and quiet on South Island after Sonic the Hedgehog crushed the plans of the diabolical Dr. Ivo Robotnik for the first time. Far too quiet, in fact, for a hyper young hedgehog who craves action. So Sonic left South Island in search of other adventures.
When he returned. Sonic found no sign of his friends anywhere. Confused, he went back to his digs to think and found a note waiting for him. It was from Miles (or 'Tails' as he is called), a two-tailed fox who is one of Sonic's closest friends:
Robotnik is back, and he's captured all the animals on the island! He is holding me in a place called the Crystal Egg. In order to free me, you have to find and bring the six Chaos Emeralds.
Robotnik made me write this. He says he's waiting for you and he's created size really nasty robots in order to 'get rid of you once and for all'. I don't know what he has planned, but Sonic, please be careful!
There was no time to waste! The letter fluttered to the floor as Sonic dashed off to find the Chaos Emeralds and save his friends.
From:- UK & US Manuals
JapaneseSouth Island has been peaceful since Dr. Eggman's defeat. Sonic, bored out of his hedgehog skull, decides to go on a journey in search of other adventures. Upon his return, he is shocked to find the island nearly abandoned. The only clue as to where all his friends might have disappeared to is a single note, written by his two-tailed fox buddy, Miles "Tails" Prower. In the note, Tails explains that he's been kidnapped by Dr. Eggman and is being held in a place called Crystal Egg. The price for Tails' safe return are the 6 Chaos Emeralds, to be delivered to 6 new boss robots. Sonic doesn't even finish reading the ransom note before he's off to play hero once more.
From:- Japanese Manual (Translated)