Supersonic Electronic Mastermind Tweet Out of stock. Wishlist Description Electronic version of Mastermind. - BoardGameGeek Details Ages: 8 and up Category: Puzzle Designer: (Uncredited) Family: Mastermind Players: 2 to 2 PrimaryName: Supersonic Electronic Mastermind Product Title: Supersonic Electronic Mastermind Publisher: Invicta Games Time: 20 minutes Year: 1979
