Super Mario Galaxy Tips

Ghostly Galaxy secret rainbow star
In the Ghostly Galaxy mission when Luigi is trapped in the house, at the very beginning of the level on the small planet that is shaped like a ring, you will see a small, tall rock to the right. Do your spin move on it and it will break, revealing a rainbow star, now you can just kill everything around here including the chain chomp on the path. This is fun plus it results in loads of star bit`s.