SAN FRANCISCO - JULY 25, 2006 - PlayFirst, a leading publisher of casual games today announced the Macintosh-compatible version of the chart-topping SpongeBob SquarePants™ Diner Dash™ - the popular casual game combining Nickelodeon's loveable star from Bikini Bottom and the exciting gameplay of the original Diner Dash.

Already a hit with the PC audience on PlayFirst.com and Nick Arcade, SpongeBob SquarePants Diner Dash features the same classic game mechanic and fast-paced fun of the original game with the characters from the Emmy-nominated series and sponge-worthy storylines. PlayFirst's Diner Dash has become one of the most popular games on the Web with more than 100 million plays worldwide. The original hit game follows Flo as she grows her fledgling diner into a five-star restaurant, satisfying customers of all types along the way.

Launched in July 1999, SpongeBob SquarePants has been the most watched animated series for kids on television for the past six years. SpongeBob SquarePants is consistently one of the top rated kids' shows on television. More than 60 million viewers tune into the show each month, making it one of the most watched kids' shows on Nickelodeon.

SpongeBob SquarePants Diner Dash is free to try for 60 minutes or purchase for $19.95. To download a Mac or PC version, please visit http://www.playfirst.com/game/spongebobdash. The PC version is also available for download on www.nickarcade.com.

About Nickelodeon

Nickelodeon, currently in its 27th year, is the number-one entertainment brand for kids. It has built a diverse, global business by putting kids first in everything it does. The company includes television programming and production in the United States and around the world, plus consumer products, online, recreation, books, magazines and feature films. Nickelodeon's U.S. television network is seen in 90 million households and has been the number-one-rated basic cable network for eleven consecutive years. Nickelodeon and all related titles, characters and logos are trademarks of Viacom Inc. (NYSE: VIA and VIA.B).

About PlayFirst, Inc.

PlayFirst is a leading publisher of highly-original games made for casual gamers wherever they play. Committed to fostering creativity, PlayFirst works with talented internal and external developers to bring innovative games to multiple platforms, including PC, Mac, mobile and handheld. PlayFirst's portfolio of games includes the top-selling hit Diner Dash, which has more than 100 million plays worldwide. Founded in 2004, PlayFirst is funded by Mayfield Fund, Trinity Ventures and Rustic Canyon Partners. For more information visit www.playfirst.com.

Diner Dash, PlayFirst, and the PlayFirst logo are trademarks of PlayFirst, Inc. All other trademarks are the property of their respective owners.

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Press Contact:

Joanna Roses
Nickelodeon
(212) 846-7326
Email:

Kirem Marnett
PlayFirst, Inc.
(415) 874-2665
Email: