re-install the game,check as if the ipk file is right ?
install preenv ( latest version )
enable all repositories and in terminal start typing
root
apt-get update
apt-get install preenv
later on install Wgames
check for right ipk.file >>rest every thing will be okey
it happens first time mostly when you trying to run asphalt 5 ,but its alright ..try again ! Follow everything and you will be good

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