This game was beyond my expectations to how much content it has. As someone who has played all the previous games referencing this game, I was extremely satisfied to how it adds on its own story while making connections to the original story (mainly the Shadow story)! I barely watched any of the trailers to not be spoiled by any in-game content because at first I wasn't as thrilled due to the fact that sonic forces and frontiers contents wasn't too great, but this was far more different. Not only do you get to play a HD version of sonic remake, you also get nearly twice the content from the Shadow generations as well as new challenges and completion progress to further enhance replay-ability! After 12 hours of playing, I have completed the both main games and experienced it all, and my finals rating is definitely a 5/5! Now its time to enjoy the replay value and go for the 100% completion and to have a game that is available for all that is updated (even if I have the old version)!