"Balls of Steel is a pinball computer game developed by Wildfire Studios and released on December 12, 1997. It is the only title to be published under the Pinball Wizards label, a division of Apogee Software (today known as 3D Realms).
The game's original box art showed a female hand holding a large pair of pinballs, above the phrase, "Come play with our balls."
The game's realistic physics and highly interactive and imaginative tables have been lauded.
When the game was originally released, it was possible to upload high scores to the WorldScores server, for a global ranking. This feature has since been discontinued."
Source: Wikipedia, Balls of Steel (computer game), available under the CC-BY-SA License.