This article contains information on the manuals that were included with copies of Sonic and the Black Knight.
- One day while Sonic is waiting for a potentially stressful encounter with Amy, he is abruptly summoned into the book of King Arthur and the Knights of the Round Table by a frantic sorceress named Merlina. The young sorceress is being hunted down by King Arthur himself and begs Sonic to help her save the fabled kingdom.
- Our blue hero immediately finds himself in the middle of the action where he is greeted by a not-so-noble looking king. The once beloved ruler is now bewitched by the power of the mighty Excalibur's scabbard, and as the Black Knight, he is spreading terror throughout Camelot.
- To defeat the evil king, Sonic will partner up with Caliburn, a sacred sword with a proud manner. Sonic must learn to properly handle the blade as an honorable knight and prove he is worthy of challenging the great king.
- Meeting familiar faces along the way, Sonic must defeat Arthur and ultimately find a way to restore Camelot.