Dusty Dune Galaxy - Bullet Bill on Your Back

Welcome to the Galaxy!
Mario
We land on a circle of sand and pound the switch, which makes the platform rise up, running into blocks along the way. We must avoid being crushed by the blocks, so stay out of their shadows when they get close. We grab a Life Shroom and launch using the Launch Star that appears when things stop moving. We land on another sand disk with a Launch Star chip in the center. There are two switches: a blue one and an orange one. We grab the Koopa's shell and pound the blue switch, revealing a tower that was under the sand. We race to the center so we can grab the remaining Chips as they appear. One of them is in a treasure chest. If we don't get them all, we can lower the tower with the orange switch and raise with the blue switch as many times as we need. The Launch Star appears on top of the tower.
We land on a small, spherical planet where the sand covers and recedes, changing the size of the planet and what we can access. There is a red spiky plant that we need to destroy with a coconut. We launch to a similar planet with a red spiky plant. There is a stump on the planet as well. Pounding it makes musical notes that play a musical scale. Collecting them gives us a pink Launch Star which takes us to a Bill Blaster. There's another set of blue and orange switches. Pounding the switch will raise the Bill Blaster on a tower and reveal several cages, one of which contains a Star. We have to successfully lead a Bullet Bill to the cage, but it must hone in on us around the time we pound the switch (one the tower is raised, we'll have no way to attract it). So we have to run around the tower, dodging Dry Bones until we can reach the cage. We also have to keep the Bullet Bill from crashing into the ground. I find that periodically jumping helps. This may take a few tries. The Star will fly near the Bill Blaster.
Star Get #60, 3 Coins, 2777 Star Bits, 11 Lives

Luigi
We pound the switch to reach the Launch Star. We get all of the Launch Star Chips in one pass and launch again. We kill the plant with a coconut and pound the stump for the musical notes and the pink Launch Star. I died from quicksand.
Take 2- After several attempts, I broke the cage with the Bullet Bill and got the Star.
Star Get #60, 3 Coins, 3351 Star Bits, 35 Lives