Co-op has been a staple feature of many Sonic games for decades now. These examples are the best of the bunch.

This is especially because the creators of fan games got to make Sonic Mania, an official game and ... You can play as Sonic, Tails, Knuckles, Mighty the Armadillo, or Shadow the Hedgehog, all ...

Tails, who is Sonic's best-friend and sidekick, first appeared in 1992 with the release of the video game Sonic the Hedgehog 2. Tails is a yellow-orange, two-tailed fox whose 'real name' is Miles ...

It's not uncommon for the Sonic films to tease new characters with their post-credit sequences. The first installment teased Tails' arrival, for instance. As for the first sequel, its closing ...

This game also introduces a new troupe of Eggbots called the Hard-Boiled Heavies for Sonic, Tails, and Knuckles to beat. Mania is considered one of the best Sonic games of the 2010s because of the ...