Thanks to some cool level and boss designs, Episode II starts out on a really high note and just keeps going throughout its 16 stages—four zones and four acts, plus third-person 3-D tunnel bonus levels. From moment one, a fully 3-D rendered Sonic is joined by the two-tailed fox Tails, blissfully bereft of the high-pitched voice he has possessed throughout more story-laden Sonic games, and the characters take off together throughout expansive…