Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
Sonic Mania Encore DLC - Experience a new take on familiar zones with the all-new Encore Mode, play as two new characters with their unique abilities: Mighty the Armadillo, and Ray the Flying Squirrel, and compete with up to four friends in expanded Competition Mode!