I played it on PS4
This game is great, i must say that my favorite aspects of it are the boss battles, the animation, enemy variety and the music. The game feels fresh even to this day and i had lots of fun with it. The clock tower part is stupid and i ended up searching for the answer online for that and for getting the holy glasses. The game tells you nothing and it hurts the pacing a lot, I read online that you had to look it up in the manual but given that i played it on PS4 there was no manual to look at. Another criticism i have is the fact that each time you die you gotta wait for whole lot of screens to get back into playing, on their own they are short but they really add up rather fast. That said, is a very solid game with fine controls, lots of hidden mechanics, great combat, amazing atmosphere and exploration.

This game has me feeling the most hopeful for the series I have in a long time, but it's also "five steps forward, three steps back" for Sonic as a whole. The story was nice but much too focused on the past of the series, as if they were afraid to be too bold and defanged some intended darker elements or further character drama. I liked Sage's character but not that much, it was a very formulaic story that I think didn't differentiate itself enough from Shadow's original SA2 arc.

The open zone was the best part of the game by far, with lots of different small objectives and bosses giving a nice sense of exploration and a good sandbox for the movement. The freeform nature of it allowed for a lot of fun objective skipping and experimentation, though the physics were certainly wonky and restrictive a lot of the time as well. Given more time iterating, this style of gameplay could very well put Sonic back into the forefront of experimental and interesting platforming games.

The cyberspace levels were a nice concept, with some fantastic music and a good objective system. However, I feel the S rank times were too easy to achieve, a problem it shares with the many boost-era Sonic games it shares this design with. There also should have been a sort of special achievement for getting all the objectives in the same run to increase replay value. The level design was quite the disappointment as well, often reusing unedited chunks levels from Generations, Unleashed, and strangely enough Adventure 2.

Given the framework that this game set, I can see a true classic Sonic game coming out of Sonic Team again, which is something I haven't felt in a very long time. They just need to spend more time working out the kinks in the design, create more original content for the cyberspace stand-in, and write a bolder story with less talking and more actions from the characters.