Now available for pre-order on GOG.com and GamersGate at 25% discount (pre-order discount)
http://www.gog.com/en/gamecard/giana_sisters_twisted_dreams/
http://www.gamersgate.com/DD-GSTD/giana-sisters-twisted-dreams/

Project Giana is a challenging fast-paced platformer with a twist. You can warp Giana's dream world to transform your abilities and surroundings. Use your skill, speed, brains, and powers to defeat the dangers that populate these twisted dreams!