In 1997 Marx Toys produced a 30th Anniversary edition of the game (MCMXCVII, Item #3905). This box has "Find Kelly the Ghost... if you DARE" printed on it.
Green Ghost remains collectible, but with so many different editions it is difficult for collectors to know if they have a complete set.
The board is of the 3D type in that it features standing scenery and is designed to appear as a spooky town. The luminous plastic board is elevated on six stilts and underneath are three boxes, covered by locked trapdoors. The pits contain either plastic bones, "bat" feathers or rubber snakes, plus a number of hidden "ghost kids" (one of which is "Kelly", the Green Ghost's child).
Spinning the large Green Ghost gives you the number of spaces you can move your pawn: vulture, rat, cat, or bat. Players use trapdoor keys to collect ghost kids and increase their chances of winning. When all twelve ghost kids have been retrieved from the traps, they are placed in little holes on the Green Ghost spinner (each player needs to remember which ghost kids are the ones he or she found). Then the large Green Ghost is spun one more time, pointing to the little ghost it identifies as Kelly. Whoever found the one pointed to wins the game.