Does anyone have Super Paper Mario: The Thousand taon Door?

I do, I pag-ibig that game. :D

As far as defeating the final boss. I just bring a lot of halaya ultras for me and life shrooms for my pals. I usually use Vivian and Admiral Bobbery, they're helpful when it comes to doing multiple attacks. And when it comes to fighting Bowser and Kammy after Grodus, I usually enter the battle with Grodus with 80 or madami starpoints. That way when I enter the battle with B and K I'm totally refilled. Hope this helps.