Sonic the Hedgehog 4 : Episode 2

 
Sonic the Hedgehog 4: Episode II plays similar to the previous episode, but with several enhancements. Sonic is now accompanied by Tails, either controlled by the computer or a second player via local or online co-operative play. Unlike in the 16-bit titles, Tails cannot be played in single player and likewise Sonic can’t be played on his own. There are also new various combination moves that can be performed together, such as Tails lifting Sonic up to places he would be unable to reach otherwise, and the two can roll into a ball to perform a fast and powerful spin attack.