World of Goo & Prince of Persia S&F on Sale Now for $0.99.

For a limited time World of Goo and Prince of Persia Shadow & Flame are on sale for $0.99.  I don't know how long the sale is going to last, possibly this week only, so get it while you can, maybe with the $5 credit you can get from the Kit Kat bar promotion.

World of Goo: Google Play Store Link
Prince of Persia S&F: Google Play Store Link