Check out this easy to play advergame from Lego's Power Miners™. First select a monster to play. Then when you see the countdown start, move your mouse left and right as fast as you can to build up your power. Once you hit the rock and start flying, use the left click on your mouse to move higher by holding it down (to move up). If you let go of the left click button, your monster will fall so the key is to balance your height to collect as many crystals as possible. Special crystals extend your game play time.