Angry Cow Jetpack

Once upon a time one little cow found a jetpack in the bush. It was a really interesting thing and Cow ate it. Somehow the jetpack turned ON and sent the Cow in the open space. She really likes it... for the first 5 years. But now she is really angry and wants to back home. Please, do help the Cow to get back home. To do this she needs to eat as many green balls as she can. And mind the dangerous meteorites!