I finished Superstars a while ago and have since have had the chance to let it sit in my mind, and I can say for sure that; I view Superstars as a great game, a great time and a great step forward.
The Stages have their own Identity again, (Not that I mind returning stages)
(A purely subjective take) The Music is awesome,
The Bosses aren't punching bags that exist to break the pace and are instead actual fights some go on for a bit but are otherwise a step up from previous bosses in that they test your skills and reflexes: The first Final boss took me two tries to beat, (Either I'm built different or I was just lucky with the usage of my Emerald powers) Fang took me more tries but was over all a good challenge, The Black Dragon was very simple minus that Meteor Attack but once I learned the trick it was easy; Just match the Green Lock-On Reticle with the Grey Ring on the Meteors in rapid succession Dodge the Laser and Bam.
Overall: A wonderful experience, if there's a few things I'd like to have changed:
*Emerald Powers stay after taking damage and can be turned off whenever,
*Some bug reporting and much needed squashing,
*The characters appear in rotation during the Last Story,
*All Players can use the same Emerald Power.
That's really it tbh, the game could definitely benefit from DLC (Hot Take I'm sure) maybe adding new areas maybe Mighty & Ray and the Chaotix with the Hooligans as the main threat, either way I'm happy to say I've played Superstars.