Hahaha, I'm glad I'm not the only one horrified by the trailer. The trailer raises so many problems that I don't even know where to begin. First, it's worth noting that the graphics look like any other 3D Sonic game - Sega hasn't improved the visuals at all. With other games, such as Jak 3 and Resident Evil 4, boasting such dramatic facelifts, how can this latest Sonic compete? Second, of course, is the gun. While we've seen Robotnik/Eggman boast a few goofy firearms in previous Sonic games, they all fit the theme of the franchise. This latest gun, like Darsh said, looks exactly like Dante's and appears too realistic for the Sonic theme. Third, the gameplay looks the same - the gun is just a gimmick that unsuccessfully hides the fact that you're playing "just another 3D Sonic game."
What is Sega thinking? Personally, I don't mind the switch from Sonic to Shadow, but I can't get over how little effort has gone into the project itself. Sega has very little to work with at this point, and Sonic has proven to be a successful character. (Despite all the virtual diarrhea his name has been dragged through.) What Sonic desperately needs is a polished, well-designed platformer that's true to the 16-Bit games, but Sega just simply refuses to think before they develop. Therefore, I can't be excited about this latest game. I still have hope for Shining Force NEO, one of at least three other Shining games in development, but I'm not even going to give Shadow the Hedgehog a chance. It's a shame, but this is the post-Dreamcast Sega of today. 🙁