That's not to say there isn't any kind of interaction, of course. There are parts of the levels that do show a glimpse of that old Sonic magic: making the perfect jump, hitting those bumper-jump pads that make that oh so satisfying noise. But then, he's off again, blasting on-rails through the level, occasionally smacking into an enemy or a pit of spikes that makes the rings you've been collecting on the way scatter around him. Worse still, you could find yourself plummeting into a pit. There is some satisfaction to be had learning each course, plotting your perfect route and honing your reactions to hit the jump at just the right time, or use the sensibly integrated sidestep, mapped to the shoulder buttons, to avoid that aforementioned pit. Unfortunately, the frustration felt on those first run-throughs can be too much to bear, particularly as you progress into tougher stages, where there is far too much trial and error for comfort. For Sonic Team, striking that balance between incredible speed and control remains as elusive as ever.