Flip once you're on the left side of the platform above the block with the vase in Merlee's Mansion (2-3). There, you wil see a treasure chest. Open it to find the third pixl (Slim.)
In a bathroom stall.
In the bathroom stall.
you give him some paper you find that i think has a clue on it
Chapter 1-1
You will "find" him after chapter 6.
Itty bits in flipside.
you will find her at Flopside somewhere when you finish the game
use the key you find.
u look 4 em'
The third Star Spirit you find in the story is named Skolar.
As sap soup is only available in Super Paper Mario, you get it sometimes when you defeat Floro Sapiens in chapter 5.
go to the place with the blocks and troopas and fall down to find it