Sonic 4 Episode II THD is available on the Tegra Zone and it’s seen considerable changes from Episode I, Episode II has a brand new physics and graphics engine thata delivers physics that is closer to how it was on the Mega Drive/Genesis. Like Episode 1, the game is a 2.5D sidescrolling platformer, though it plays similar to Sonic the Hedgehog 2, with the addition of Tails. During regular gameplay, Tails follows Sonic around like he did in Sonic 2 and 3. A co-op mode has also been added, allowing one player to play as Sonic and the other as Tails.
If you’re keen to pick it up it’s available for $6.99 in the Play Store.