Special weighted discs are preferred by disc golf pros, but you can use a regular frisbee to play.
Basic Rules of Play
Scoring- Each throw counts as one point. The object is to acquire the lowest total score. Each hole has a par score, the number of throws expected to get the disc in the basket.
Tee Throws - Throws must be completed within the tee area.
Fairway Throws - Fairway throws must be made with both feet no closer to the hole than where the disc last landed.
Putt Throws - Within 10 yards of the pole, falling or jumping putts are not allowed.
Out of Bounds- A throw that lands out of bounds must be played from the point where the disc went out of bounds, and a one-point penalty is incurred. Water hazards and public roads are always out of bounds.
For official PDGA rules please visit http://pdga.com/rules/index.php.