Super Mario Galaxy 2 Part 10- Beat Block,Rolling Masterpiece Galaxies and Bowser Jr.s Fearsome Fleet

Part 10. We do Beat Block Galaxy, which contains the star "Step to the Beep", go back to Wild Glide Galaxy to do "Jungle Fluzzard Race", do Rolling Masterpiece Galaxy, which contains the star "Silver Chomp Grudge Match", and we do Bowser Jr's Fearsome Fleet, which contains the star "Bowser Jr.'s Mighty Megahammer", battle the Megahammer, and get the 3rd Grand Star