Today only. Amazon has the Sprinkle Android Game for $0 downloaded. Normally $2. $1 Amazon MP3 Credit included with purchase; limit one per customer. This puzzle game has you directing the flow of water to put out fires across various areas of the screen. 
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Seems like you only get $1 credit once for one of these "Apps of the Day" from amazon. Though, still a good game to give away free. Just no $1 credit for me more than once over the last month.
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