The fitness game impressed me the most due mainly to how it showed that your body was being placed into the virtual world and the world interacting with it. The blue boxes that fly around bounced off the back of the person quite nicely. Also, it uses the depth data nicely to make sure the person is extending their punches out instead of just detecting whether or not movement was behind the block. It also made sure the person was using the correct body part to hit the blocks. Wasn't sure if they would be calculating that since they are not using MS's skeletal system stuff.
The games overall look pretty polished. I don't care for Dance Central, but it will probably be the killer app for Kinect. I didn't care for Kinectimals(but it looks great for kids) or Joy Ride either. Kinect Sports looks good(not based purely on this video) and Kinect Adventures does a stand up job of showing the strengths of the platform. Should be interesting to see how the public recieves the device.
