Gamers say they are unhappy that one of the most hyped video games of the year will cost them £10 more than most other games on the market.
The company behind Call of Duty: Modern Warfare 2, Activision, have set a price of £55 instead of the regular £45 for most other new releases.
The first Call of Duty: Modern Warfare game was the biggest seller of 2007 shifting more than seven million copies.
The latest version is released in November and will be one of the biggest sellers of the year.
Eighteen-year-old Gary from Islington in London doesn't care about the price and says he'll definitely be buying it.
"I know we'll still buy it because once we've got the game you can't stop playing it.