Super Paper Mario - Flopside's Pit of 100 Trials - Rooms 1-10

Read description first
Like Flipside, Flopside has its own Pit of 100 Trials, except here things are even tougher...and tedious for another reason.
Key Notes:
- You SHOULDN'T take heavy preparation to attempt this challenge only because something odd happens at the end. So, just have some good healing items and go for it.
- Attempt this when you at least have cleared the story.
- Also, be sure to get one of Merlee's charms, especially the Special Course charm so that you have items all the time.
Watch, enjoy, and comment, everyone.

[@sircharlesdinsmoredinsmore1089]

How do you get the special course charm?