CC0 1.0 Universal (Public Domain Dedication)

The person who associated a work with this deed has dedicated the work to the
public domain by waiving all of his or her rights to the work worldwide under
copyright law, including all related and neighboring rights, to the extent
allowed by law.

You can copy, modify, distribute and perform the work, even for commercial
purposes, all without asking permission.

This dedication applies to all files in this package: PINBALL.DAT and all
sound*.wav files. They are original works created from scratch (procedurally
generated original art and audio) and are placed in the public domain.

Full legal text: https://creativecommons.org/publicdomain/zero/1.0/legalcode

No warranty. The work is provided "as is".