Cat Games for Kids

How to play the game "Cat Games for Kids"?

There’s a stray cat been calling at your door several days in a row now, but this is no ordinary cat. This cat is Felix, and he has a magic power of attracting balls of yarn! It’s fun at first, but now the wool balls are coming too fast and they’re getting everywhere! Hurry Felix - group the balls of yarn by colour and vanish them!