The sequel fans have waited 16 years for is finally here - Sonic The Hedgehog™ 4 Episode I!

Featuring enhanced gameplay elements, including the classic Sonic Spin Dash, and the versatile Homing Attack, Sonic 4 picks up right where Sonic and Knuckles™ left off.
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2 EXCLUSIVE LEVELS!!!
Two exclusive levels built specifically for play on the iPhone & iPod Touch using the accelerometer.

NEW MOVES
All of Sonic's classic moves are available, including the newer Homing Attack which will add a new level of control and excitement.

CLASSIC SONIC STAGES
Race through 4 unique zones containing 4 acts each as well as 7 special stages.

SPECIAL STAGES RETURN
A staple of the Genesis-era games, the special stages return allowing fans to collect the 7 Chaos Emeralds and unlock Super Sonic.

REVAMPED CLASSIC BOSS BATTLES
Dr. Eggman returns with new and improved mechas and will go berserk when he accumulates damage.