A glance at the box art for Sonic and the Black Knight reveals that the game is part of the newly-dubbed "Storybook Series," to which Secret Rings is retroactively appended. This implies that more games are on the way, but are they necessary? Black Knight is a fun diversion, but it's not much different than the last game. While a sequel could be refined by further emphasizing speed over combat, it's probably doomed to repeating the same formula ad nauseum for an ever-evolving kiddie fanbase. Try it now, before the Storybook Series becomes another cash cow in Sonic's repertoire.