A 3D platformer marking the franchise's 15th anniversary, featuring Sonic alongside other playable characters. The game attempted an ambitious story-driven approach with multiple character perspectives, but suffered from a troubled development cycle that led to an early release. Long loading times interrupt the action frequently. The camera system struggles to keep up during high-speed sections. Gameplay glitches appear throughout, from clipping issues to inconsistent physics. Character controls lack the precision expected from the series. The plot involves time travel and parallel storylines that some players found convoluted. Despite technical shortcomings, it aimed for a more serious tone than previous entries. This one's primarily of interest to completionists or those curious about the series' rocky moments.
