I loved this game. It kept me enthralled for ages, and I found it very addictive. The game is quite simple-just trying to get the water/air/earth/fire to flow to the end point by clearing the route so the element can proceed, but it can be really hard to do that 'quite simple' thing. Some levels are really easy but towards the end of each section it gets harder. The final one where the screen is moving and you are trying to hold it still in order to clear the way for the elemental flow still has me stumped.