Retailer Amazon.com this week discounted Sega Corp.'s Sega Superstars Tennis for Microsoft Corp.'s Xbox 360 to under $11 in the latest round of game discounts.

This week, Sega Superstars Tennis held a sale price of $10.83, 46 percent below $19.99 MSRP.

The discount has led sales to increase more than 3,500 percent at the retailer.

Additionally, Amazon this week began offering Warner Bros. Interactive Entertainment Inc.'s Batman: Arkham Asylum for Sony Corp.'s Playstation 3 and the Xbox 360 to under $53 in a new pre-order sale.

The Xbox 360 sold 391,000 units to rank third in overall Feb. hardware sales according to NPD Group Inc.

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