At first, PixelJunk Eden from the PSN is a chilled-out, relaxing experience; as you learn the controls for the first time, the act of swinging from plant-like vines and leaves, or jumping off rocks to cannonball into a formation of pollen prowlers, is exhilarating. Climbing through one of PixelJunk Eden's gardens is a sublime experience when you start out. But very quickly, this PixelJunk game ramps up the difficulty in a number of ways, and it becomes obvious that this isn't just another flowy, fru-fru game tthat you can easily blast through on your PS3.
First, the enemies become more aggressive. Though most of them do little more than knock you off vines or drop you in mid-swing, having to drop all the way back to the bottom of a level will kill any momentum you had. Second, and more annoying: there's a time limit to every garden, regulated by little crystals you have to collect in order to earn more time. Run out of crystals and you get booted out of the garden. (Insert Adam and Eve joke here.)