Mars Snackfood US and Six Flags have expanded their existing sponsorship agreement, making Mars the "official candy" at all US Six Flags theme parks.

During the five-year agreement, Mars will have exclusive marketing rights for all pre-packaged in-market promotion and in-park advertising.

"Now families can enjoy their favourite Mars brands while creating special memories at these fantastic theme parks," said Todd Lachman, president of Mars Snackfood US.