As the developers point out, replicating a full table on the small QVGA screens, and with the the phone able to represent just one 'bar' using the accelerometers, they've had to take a slightly different approach to this game/demo. This is more akin to the games you would play as a child, with one of you in goal and the other two trying to score.
Your Nokia becomes the goalie, while you control the two strikers on the 'final bar.' Tilt the handset left and right to move the bar back and forwards, and then spin the phone to spin the bar and power the ball either past the scarily good AI, or attempt to move the ball around for a better angle.
It's still more towards a technical demo than an actual game - the auto-rotation on the N95 8GB kicks in sometimes as you're playing and it really doesn't play nice with the screenshot application (as you can see), but the core of a game is here, and with the Python based source code freely available in the same .zip file as the application, it wouldn't be too much work some enterprising author to come along and take up the challenge.
As I've said before, one of the strengths of mobile games in general, and the N-Gage platform in particular, is how well they adapt to new input devices and sensors - pyWuzzler illustrates the potential perfectly, and is probably one of those 'good games to pass round the pub to show off.'
The application along with source code is available from the pyWuzzler page.