How much do Nintendo ds games cost?

this obviously varies in price, but games usually range from about £15 to £40, as obviously new releases are more expensive that older games. if you go to a shop like Game sometimes thay have offers on, where you can take in two old Nintendo ds games and swap them for a new game, of they sell second hand ds games reasonably cheaper.

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Also bigger games e.g Guitar Heroes which have a whole drum set cost a lot more.