Sonic Mania Plus Announced - Siliconera

In Summer 2018, Sonic Mania Plus will be released. It will add Mighty and Ray as playable characters, as well as 4-player multiplayer and an Encore Mode.

Sonic Mania Plus, Sonic Wiki Zone

There was an error in the original one, I apologise : r

Sonic the Hedgehog - Wikipedia

Sonic Mania Plus - A Closer Look at the Release Date Trailer

Sonic Mania Plus & Sonic Mania Collector's Edition Giveaway

Mighty And Ray Give Sonic Mania Plus More Strategic Options

Sonic Mania Adventures Looks Back At How The Web Shorts Were Made

Sonic Mania Plus now has a release date

Sonic Mania Plus, Sonic Wiki Zone