Believe me, I'm as surprised about this as you are.
Sega has shoved its mascot character into so many wretched games over the past dozen or so years that the phrase "good Sonic game" may as well be akin to saying "don't touch that fire; it'll freeze your hand." Yet here I am, after playing the game, trying to make the muscles in my hands type the words "Sonic ... Colors ... is ... is ... good." Not just good for Sonic, but good good.