Oh man... This is a review that's gonna tug on my heart man. Let me get this out the way:

Sonic Superstars is a fun 2D Sonic game, but it is a very ROUGH experience. In my time playing it, I personally did not experience many glitches, but I did witness glitches happen to friends whilst they were playing during a Discord VC. The controls are super nice and are almost one to one with other classic games; The level design and aesthetic is really good and friends and I were very pleased to see the many references sprinkled in a few zones here and there.

Here's where the problems come in tho. The Soundtrack is a mixed bag worse than a mid 2000s fangame. It feels like songs were pulled from different titles; The most egregious being tracks done by Jun Senoue, whose work in this game sounds like scraps from Sonic 4 EP.III or something. Its a real shame because partway through the game, thats most of the songs you'll hear. This strange botched attempt at Genesis style music, the overuse of the Sonic 1 and 2 snare; It gets frustrating, especially during the long and tedious boss fights that will test your patience.

The final boss for the main campaign is such a annoying battle, it genuinely took some of my enjoyment out of the game. I have not done the other campaign yet, but as of right now, I cannot reccomend people getting this game at full price.

Sonic Superstars needed more time in the oven to iron out things that are wrong with it.