Nobody should waste their money on this unless there only option is a DS and they are desperate to play Call of Duty (Modern Warfare 3). Its simply a way of making a little extra money and definitely doesn't work on a DS. The graphics are terrible and the game is so hard to play with several less buttons/analogue sticks than a controller or keyboard. I would suggest to get another game before this because there are plenty of good DS games but this isn't one of them.