Goomboss Battle - The Switch Star

This is a mission unique to the Nintendo DS.
There are other missions to complete inside the Mario painting. If we go in as Mario, we can complete one of these missions. We slide down the trunk and head to the right. We land in the haze and take damage. We walk up the narrow slope and take out the Piranha Plant. We jump across three of the four gray tilting platforms and land near where we came in. We take out the Goombas to clear the runway. At the end is a tall metal cage with a Heart. We need to reach the top of the cage, so we need to do wall-jumps (wall kicks). A sign near the cage explains "Hop onto high places with the wall kick. Just jump at a wall, then jump again when you hit the wall. Keep in mind that only the superhero with the red cap can pull this move off." Near the Star Switch is another sign: "In front of you is a Star Switch. Step on it to make a Star appear in the course. Hurry to collect the Star before it disappears! Don't forget that you can check the Star's location on the Touch Screen map."
We step on the Star Switch and the Star appears at the top of the ledge inside the metal cage. We run to the cage and wall jump up until we land on the grassy ledge. We run to the Star Sphere and break it for the Star. We get a message: "Wow! Another Power Star! You're getting stronger from the power of the castle. Do you want to save? You bet / Not now
Star Get #35, 6 Coins, 7 Lives
Since we are not warped out, we decide to see how Goomboss is doing. After falling in the haze and being hit by a Goomba, we fall into the trunk to see Goomboss. He says "You're Mario!!! What are you doing here?! My underlings locked you up in that room. Never mind. I'll deal with you myself! Now I will trample you as you have trampled us!"
The Goombas appear in front of him this time, so we can punch them into Goomboss. We get trampled by Goomboss, taking four bars of damage. We fell into the haze trying to get aroung them, but punched two Goombas into him. We run into Goomboss, but get in a hit from behind. We take more damage, but get in the last hit we need. Goomboss says "Aaaaauuuuuuurrghhh! I am so angry I am cooking in my own succulent juices! The Goombas have lost... Again?! Is this our destiny?! To be trampled by oppressive feet for all eternity? No, we will definitely triumph next time! Yes, next time! The Goombas' fate is not defeat, but perseverance!"
He explodes into the key once again. We get the key and warp out. We can't do anything special with the key because we already unlocked the door.
The next Star is the Secret of Battle Fort.