Grab Granny in Paradise (PC Download) for $0.98.  It is the for Sunday, September 27, 2009.

Also, they have a promo if you buy a downloadable game, you get a select download free as well...

Check it out: Amazon.com Video Games Deal of the Day 

Product Description
Super Granny is back, and she's ready to rumble. While on a well-deserved vacation, Granny's kitties are abducted. Run, dig, climb, swing, float and tumble through 5 worlds and over 170 levels, as you rescue Granny's missing cats and outwit the minions of the nefarious Dr. Meow. With a built-in level editor you can create your own adventures for hours and hours of additional fun!