Well, I did purchase it today and have played most of the missions in the first world, and did a couple in the dinosaur world. Honestly I'm a bit disappointed, I had slightly higher opinion of the game at E3... namely I think they added too much crap to the game to "fill it out" and a lot of that stuff doesn't really work too well. Namely, walking backwards is pretty annoying. There is this one part in the dinosaur world where you have to jump and hit a switch on a wall, then do a quick jump backwards onto a spring before it disappears, and every time you try to do a backwards jump you mistakenly go into the motion to do a forwards jump. I'll give it more time but right now it's decent but not amazing. Definitley better than the last few Sonic adventures, though! And I love the art direction...