We've no idea what's going on in these screenshots, but according to some blurb that's accompanied them PixelJunk Eden is a "truly innovative platform game" involving leaping and swinging between lush alien vegetation.
It "constantly evolves over time as you move through the perfectly realised undergrowth, hunting treasures and smashing enemies from his path. Destroyed enemies scatter pollen across the landscape, which the player must collect and use to pollinate seed pods before using the new growth to progress further."