I just would like to note that I am currently very sad that someone in this thread mentioned Green Hill Paradise Act 2 as something Sonic Team should look at and strive to turn Sonic into. Like, Christ, with Utopia I can at least see the appeal, but GHP has to be one of the trashiest things I ever played. It's like people wish their games were janky, clunky, floaty and so on.
It's a game about using broken Sonic moves with the worst physics ever to reach places and find hidden Chaos Emeralds inside of a sandbox like environment. Doesn't get much more Sonic than that, huh.
As for the previous debate about the games tone, I dunno, man. I think Forces really isn't doing anything too edgy. I mean, OK, Eggman conquered the world and things are looking bleak, but it's all presented as a Saturday morning cartoon nonetheless. It's no Sonic 2006, and to be fair I agree that Adventure 2 drank way more of that koolaid than this game did. Let's never forget that beyond the human girl being murdered, it also featured an entire storyline packed with military and politics crap which was just embarassing. And if you need any more proof of how terrible the seeds planted were look no further than Shadow the Hedgehog. It exists because of all the setting crap that SA2 originally introduced and contains absolutely unforgettable moments such as a mission to KILL THE HUMANS' PRESIDENT, lolol.
God, I'm so glad we're past that phase.