An M&M's ad sits on display at the Six Flags Great America Theme Park in Gurnee, Ill. Mars is expanding its marketing agreement with the theme park company after experiencing success with M&M's and Snicker's promotions. Photo by Crystal Lindell.

Mars Chocolate North America is expanding its marketing to partnership with the theme park chain Six Flags Entertainment Corp.

The agreement, slated to last through at least 2013, will now include Twix, 3 Musketeers, Milky Way, Dove and Combos, Six Flags says.

The extension follows the success of the M&M’s Day at Six Flags in 2011, as well as the successful Snicker’s-sponsored Fright Fest events.

Several in-park and in-market promotional programs are planned, including:

● A discounted admission promotion with Milky Way and 3 Musketers brands during the summer.

● Six Flags featured as one of the grand prize sweepstakes prizes in a national consumer promotion with the Brand.

● Mars Chocolate North America advertising creative featured on Six Flags award-winning in-park media networks, including: Six Flags Television Network, Cool Media signage, ride sponsorship, spectacular Out-of-Home units, Six Flags online and mobile programs.

"We have enjoyed a very successful relationship with Mars Chocolate North America over the past three years, and are excited to expand our relationship," says David McKillips, senior vice president of corporate alliances and partnership marketing for Six Flags. "The addition of the other brands in the Mars Chocolate North America portfolio will foster new and creative promotions, as well as continue to provide thrilling experiences for our guests."

For more information on Six Flags, visit; For more information on Mars, visit