How do you use the boost in sonic unleashed?

In "Sonic Unleashed," the boost mechanic is activated by pressing the corresponding button (typically the "B" button on Xbox or "Circle" on PlayStation). This allows Sonic to gain a burst of speed, which helps navigate through levels quickly and defeat enemies. The boost consumes a portion of the boost gauge, which can be replenished by collecting rings or performing specific actions. Timing your boost effectively is key to maximizing speed and avoiding obstacles.