To play, simply guide your boat along the swimming pool racetrack by blowing into the microphone and using the accelerometer to steer. While this is a really cute idea, it's unfortunately not as cute when put into practice. Since the iPhone's mic is located on the bottom of the phone, you have to hold your iPhone parallel to the ground, blow into the mic, and try to look down as you tilt your boat through the course. This is not impossible, but also not terribly easy on the eyes. Luckily, there are alternative controls-you can tap the on-screen buttons to go backward and forward at a fairly steady speed, and if you need a boost you can simply blow once into the mic.