Grow. Just drag and drop stuff onto the ball. No, I don't understand either. But I'm still fascinated.
It's possible to get all the items maxed and a toal of 20,000 points. It's just a case of gettng them in the right order.
Just goes to show I have too much time on my hands eh?
I spent ages on it but couldn't work out the correct order. But then I was playing at work, so I didn't have much time.