Full agreement with everything you say about context sensitive moves, no question. And the same thing about the gameplay too... kind of. I think it was smart of SEGA to push forwards with a gameplay style more reminiscent of the very well received 2D Sonic Rush. It was something of a reinvention that the series needed to get people's attention. But they undermined their own efforts with the Werehog as I said before. The drift in Unleashed was poorly utilised within the level design and didn't control well either. We're all familiar with the unfairly difficult drifting mini level in Savannah Citadel and that egregious turn in Skyscraper Scamper. That's the only thing I'll say that Generations really has over it in terms of control though. Sonic's walking/running movements in Generations are so stiff and awkward. Better than Colours, a million times better than Forces and less slippery than Unleashed, but inferior to Unleashed on the whole.