HeadGames Delivers Realistic 3D Racing Action With `Extreme Mountain Biking'.

MINNEAPOLIS--(ENTERTAINMENT WIRE)--May 21, 1999--

Cycling fanatics can test their racing skills and experience the thrill of killer air without breaking a sweat in HeadGames Publishing's "Extreme Mountain Biking."

To develop the first PC CD-ROM mountain biking simulation game, HeadGames teamed up with Trek(R) Bicycle Corp., the award-winning American bicycle manufacturer. "Extreme Mountain Biking" is available now in more than 10,000 retail outlets throughout the United States and Canada for the suggested retail price of $24.95.

"Now bicycle enthusiasts can push it to the limit as they experience the ecstasy of the ascent and the freewheeling downhill challenge of `Extreme Mountain Biking,'" stated Dan Hammett, vice president of HeadGames Studios. "Players can hone their virtual cycling skills using some of the most technically advanced bikes on the market."

"Extreme Mountain Biking" lets players embark on the ultimate cycling experience by taking on the role of 12 different male and female riders. Players select from eight Trek bicycles, including the Pro Downhill(TM), VRX(TM), YSL(TM) and Cross Country Hardtail(TM) models, each with its own unique technical features. Gamers pedal through varying gradients of rugged 3D terrain as they race against their opponents for the fastest time and the biggest air.

"Extreme Mountain Biking" challenges players to compete in four separate racing events -- trials, single track, gate racing and downhill: -0-

--   The trials event lets players flaunt their jumps and tricks to
     accumulate points before the clock runs out.

--   Gate racing delivers one-on-one, high-speed action as players
     compete against a single opponent to get to the bottom of the
     track as quickly as possible without missing any gates along the
     way.

--   The downhill event tests players' bike handling skills as they
     race their opponents to the bottom of the hill as quickly as
     possible. Unlike single track and gate-racing, in downhill
     players do not have to stick to a particular trail.

--   In the single track event, players must compete against up to
     four computer-controlled opponents in each of the racing events.
     Players must lap the course faster than the other riders without
     leaving the track, or they have to go back to where they left it.

In "Extreme Mountain Biking," there are more than 15 different courses with unique obstacles. Players must exercise their power of concentration and be prepared for diverse conditions as they push their speed throughout the course. During their ride, players can check their position from multiple camera angles including first-person, reverse view and the thrill cam.

Founded as a five-man operation in a barn in Waterloo, Wis., in 1976, Trek Bicycle Corp. is now a globally oriented company with distribution in more than 65 countries and more than 1500 employees worldwide.

With a full line of premium bicycles, components and accessories, the privately held company still resides in Waterloo. For more information about Trek bicycles, visit the company's Web site at www.trekbikes.com.

With headquarters in Minneapolis, HeadGames Publishing is a wholly owned subsidiary of Activision Inc.(NASDAQ:ATVI). The company specializes in developing high-quality interactive entertainment software for the PC and markets worldwide. For more information about HeadGames, visit the company's Web site at www.headgames.net.

The statements contained in this release that are not historical facts are "forward-looking statements." The company cautions readers of this news release that a number of important factors could cause Activision's actual future results to differ materially from those expressed in any such forward-looking statements. These important factors, and other factors that could affect Activision, are described in the company's Annual Report on Form 10-K for the fiscal year ended March 31, 1998, which was filed with the U.S. Securities and Exchange Commission. Readers of this news release are referred to such filings.