EXHIBIT 99.0 FOR IMMEDIATE RELEASE CONTACT: Glenn Bozarth Mattel, Inc. 310-252-3521 MATTEL AND TYCO COMPLETE MERGER LOS ANGELES, March 27 -- Mattel, Inc. (NYSE: MAT) today announced that a certificate of merger has been filed in the State of Delaware, completing the merger of Tyco Toys, Inc. into Mattel, Inc. Under terms of the merger agreement, Tyco common shareholders will receive .48876 shares of Mattel common stock for every Tyco share they hold. In addition, holders of Tyco preferred stock will receive one share of a like issue of Mattel preferred stock for each Tyco share. Mattel will deliver instructions to former Tyco shareholders regarding the exchange of their Tyco stock certificates for Mattel stock certificates. -###-