Boccerball

From the publisher's site:

Boccerball is a new exciting fast paced marble soccer game that is fun for all ages.

The object of the game is to knock a soccer ball into your opponents goal by quickly dropping steel marbles down as many chutes as possible onto the playing surface. The first player to reach a predetermined number of goals wins.

There are many different strategies involved in playing this game and defense is as important as offense. Once you play the game you can't stop!