Kind of seems silly to buy any game developed by Sonic Team these days. They are either half-baked ideas (Sonic with a sword? Sonic as a werewolf?) or glitchy messes with repetitive, cheap gameplay (Frontiers, Lost World). They seem to rarely learn from previous mistakes or grow as a development team, similar to Gamefreak. Both studios are sustained by name recognition.
SuiXi3D
TeMPotato