The video game deal of the day over at Amazon today is Mario & Sonic at the London 2012 Olympics for Nintendo Wii for only $34.99 (that’s 30% off the list price of $49.95).

Note, this deal is valid only for today, Thursday, March 1, 2012 until 11:59pm PST while supplies last.

The item currently has a free one-day shipping promotion on it: Use a Discover Card to purchase this and enter promotion code DSCVRSHP to get free one-day shipping. See the Special Offers and Product Promotions section of the product page for more details.

From the product page:

• Take on the team of Dr. Eggman and Bowser in an all new exciting adventure
• Play as the full cast of characters in a fully immersive single player Story Mode.
• Take the fun of the Olympic Games to the streets of London as the city becomes the ultimate playground!
• Take part in a huge number of mini-games around a variety of famous landmarks with all your favorite characters in the London Party mode
• Play as the full cast of characters in a fully immersive single player Story Mode
• Multiplayer fun in a wide range of events including all-new real-world Summer Olympic events and Arcade style Dream Games
• Take the fun of the Olympic Games to the streets of London as the city becomes the ultimate playground

Mario & Sonic at the London 2012 Olympic Games is a Sports-Party game set at the 2012 Summer Olympic games in London and featuring a wide range of characters from both the Nintendo and Sonic game universes who compete in a wide range of sports events. A Wii exclusive for console play, the game continues the fun of the Mario & Sonic Olympic game series with additional new real-world events, “Dream Games” offering expanded Arcade style gaming possibilities, the unique head-to-head multiplayer London Party Mode, and more all against the iconic background of real London city venues.