Retailer Amazon.com Inc. this week began offering a $20 Bonus with the purchase of Rockstar Games’ L.A. Noire to Sony Corp.’s Playstation 3 and Microsoft Corp.’s Xbox 360 in a post launch sale.

This week, customers who purchase the L.A. Noire PS3 SKU or L.A. Noire Xbox 360 SKU will receive a $20 Amazon.com Credit towards a future purchase.

L.A. Noire is a new open-world action title set in the 1940′s.

The title includes a murder mystery plot devised by a serial killer who leaves messages to the authorities.

The PS3 is sold in a 160GB SKU at $299.99 and a 320GB SKU at $349.99.

Playstation Move Console Bundle includes the PS3 320GB SKU, Playstation Move Controller, Playstation Eye, and Sports Champions at $399.99.

Microsoft in Nov. began sale of the Xbox 360 250GB Kinect Special Edition Bundle at $399.99.

The Xbox 360 4GB with Kinect bundle sells at $299.99.

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