Little is known of the origins of the monster. Some say it was born deformed and fled from its cruel upbringing. Others say it was the result of the Government's genetic testing gone awry. And others still insist that the monster is a perfectly natural organism, merely a predator from Sonic and friends' home planet. Regardless of its origin, of one thing all are universally sure: the monster cannot be allowed to roam freely in Station Square any longer.
Allow me to explain; seven years ago, engineers working in the sewers of Station Square reported seeing a reptilian creature of monstrous proportions. Allegedly, the beast was nearly as long as a human being is tall, and possessed an enormous tail tipped with a poisonous barb. According to the engineers, one of their crew had fallen into the sewer water by accident, and was ambushed by the monster. He fought bravely to reach the surface again, and managed to take in one last breath of air before being dragged to the bottom. Horrified by the scene, the engineers fled to surface level and brought their case to the local authorities. When they were brought down to the area where the one engineer had been attacked, the police managed to find a mangled corpse, apparently devoured by something very large. A search party was then set out to try and locate the beast that had done this, but to no avail. Whatever had eaten that unfortunate engineer was long gone... or so it seemed.
Six months after the incident, the story of the monster had become regarded as an urban legend, and often times related to the rumors of alligators populating the sewer system. Work was still being done in the sewers from time to time, but there was still no sign of any reptilian monster. It was at about this time when Knuckles' beloved Master Emerald had been shattered into several pieces, and he was desperate to retrieve them all. His search led him into the Station Square sewer system, where he began searching thoroughly for his prize.
"Where is it?" he said to himself as he poured through every nook and cranny, "Where's the shard?"
Finally Knuckles spotted something beneath the surface of the sewer water: something shiny, and potentially green. His heart lept as he dived beneath the surface and went to retrieve the shiny object, and to his relief it was indeed a shard of the Emerald. By now Knuckles could barely hold his breath any longer, and so he started for the surface. But suddenly, out of nowhere, a powerful force hit him from the side, the shock of which caused him to drop the shard. The water was dark and murky, and so Knuckles could hardly see what was attacking him. But whatever it was, he could feel its might as the creature bit down into his torso. Instinctively, Knuckles hit the monster as best he could, but it didn't seem to help much. Its skin was tough, almost as though it was armored. Time was running out, and Knuckles was losing consciousness. If he didn't free himself fast enough, either the creature would devour him or he would die from suffocation. Swinging desperately, Knuckles finally managed to hit something soft - the monster's eye. The impact caused the monster to let go of its grip on Knuckles, and he immediately rushed to the surface to breathe. He then dove back under to retrieve the Emerald shard, but moved more quickly than before, so as to evade the monster before it recovered from its wound. After regaining the shard, Knuckles climbed back out of the sewer and into the streets above, where he collapsed. The monster's bite had caused him to lose a great deal of blood, and he could bear the strain no more. Slowly, the world around him began to fade to black, as the ever-so-slight sound of a siren could be heard nearly a mile away...