Sega has released a new trailer for Sonic Lost World showing off different ways to play the game together with your friends (or enemies).
Sonic Lost World will feature 2 Player Co-op Support Mode, 2 Player Versus Races and Miiverse Item Sharing. Strangley enough, the online multiplayer is exclusive to the 3DS version, so Wii U players will have Miiverse interaction as their only online feature. Better than nothing, I guess.
[Source: Sega Blog]