Paper Mario/Chapter 1: Storming Koopa Bros. Fortress

Mario and Goombario continue the journey on Pleasant Path. They battle a lot of Koopa Troopas and Goombas until they find a river with no bridge. Mario uses the hammer and reveals a switch. He presses it and a bridge pops up. Mario and friend cross it and continue their journey. They go the Koopa Village first.

The Fuzz(ies)
Mario and Goombario enter Koopa Village. A Koopa Troopa tells them the Fuzzies are attacking. Then a Fuzzie catches the shell of the Koopa Troopa. He chases the Fuzzie but Mario gets the shell back and gives it to the Koopa Troopa. Mario helps other Koopa Troopas get their shells back and now the town is saved. Mario and friend found the blue-shelled koopa named ../Kooper/ Kooper asks them to get the shell back from the King Fuzzie. Mario and friend go into the house but then the King Fuzzie gets away. He chases the King Fuzzie to his hideout. The King Fuzzie tells Mario to find him in one of the trees three times. If Mario picks the wrong tree, the King Fuzzies lackie will appear. If he picks the right tree, King Fuzzie will appear. Mario found the King Fuzzie three times and successfuly catches Koopers shell. Kooper then joins the party. Then King Fuzzie and his three lackies battle Mario and friends. Mario successfuly defeats them and then he continues the journey.

Another Hassle in the Other Castle
Mario and friends went through Pleasant Path and finds the fortress. Black Ninjakoopa spots Mario and friends and then ran into the fortress. Mario and friends go into the fortress and defeats a Koopa Troopa receiving a key. Mario unlocks the door and goes into the next room. He faces Bob-ombs and then finds Green Ninjakoopa. Green puts keys behind gates and then runs away. Mario and friends face Koopa Troopas, Bob-ombs, and unlocks doors in the fortress. They then find Yellow Ninjakoopa. Yellow sets a trap and then runs away. Mario and friends fall into a prison cell. Bombette tells Mario that she's powerful. Bombette joins the party and gets them out of the cell. Mario and friends go through the fortress and then finds the Koopa Bros. Red Ninjakoopa his brothers to fire Bullet Bills at Mario.

Peach: The Diary of a Koopa King
Walk to the painting in Peach's room, press it to reveal the fireplace as a secret passage! Use it and end up in Bowser's room. His diary is on the table, revealing the location of the next star piece.