Kinect Sports

The key to this one is agility. You will notice that when you start the game, it tells you to avoid the boots and do your best to hit the balls, this is all you have to do. When you see a red circle next to you, avoid it by as much as you can. When you see a soccer ball icon, move that part of the body towards the icon. With a little skill you should be able to get this achievement no problem after 1-3 tries! You can use any part of your body to hit the balls so be creative. Use your head, hands, arms, or anything you can to hit the balls.

Remember, avoid red icons by as much as you can while still being able to hit the soccer balls!

If this helped, give it a thumbs up!

EDIT: Tip from BadBoyBungle -
"Don't forget you can also use your hands to hit the ball with!!! Makes it much easier..."
Use all parts of your body! Head, hands, feet, arms, legs and stomach all work!!

NOTE: Some are saying this doesn't pop at 50, so if you can try and get 51. Not sure of any way to make sure it pops at 50, all I can say is good luck!

Solution posted originally at http://www.rare.co.uk/blog/?p=2528

While you can’t choose the direction of each shot in this Mini Game, you can get more power into your kicks and headers by making the motion as the two yellow circles intersect. This makes life harder for the keeper. Try to move back to the centre after dodging each piece of equipment.