New Skylanders characters released with Skylanders SWAP Force will only work with Skylanders SWAP Force, and most do not work with any other Skylanders game. There are a few Series 2 and Series 3 characters, however,  that will work with Skylanders Giants and Skylanders Spyro's Adventure.

Also, Skylanders characters created for previous Skylanders games will work with Skylanders SWAP Force.

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If you are unsure if a toy will work with the game you want to play, you can always find out by checking the picture on the bottom of the package.