Petalburg is a peaceful village filled with flowers and found in the game Paper Mario: The Thousand-Year Door. Koopa Troopas, Toads, and a couple of Bub-ulbs reside in the village. The mayor of the town is an old Koopa Troopa named Kroop. Petalburg is where Koops, a member of Mario's party, hails from. The peaceful village used to be terrorized by the dragon Hooktail. Thankfully, Mario, Goombella and Koops put an end to the dragon's reign of terror.
Similar to Koopa Village from Paper Mario, Petalburg is divided into two scenes and has six houses in a row by the north side: an inn, a shop, a Koopa Troopa's house who is a Peach fan, the mayor's house, Koops's house, and a Toad girl's house. However, Petalburg has rivers containing Nibbles.
The in-game map description of Petalburg reads, "A tiny village surrounded by flowers and greenery, just east of Petal Meadows. The village is warm all year long and boasts clean, delicious air and water."
Mario and Goombella encounter the village on their search for the first Crystal Star in Chapter 1. The Koopa Troopa who greets them mentions that Hooktail is terrorizing the area, which has hampered the local tourism. When asked about the Crystal Star, he suggests the pair to ask the mayor about it. The pair then visit Mayor Kroop's pink house, and are told that they must find the stone keys in Shhwonk Fortress in order to reach the castle. After visiting the mayor, they can talk to the Koopa guarding the gate in order to pass the village. Before they go, however, they are stopped by Koops, who intends to say something but is overcome by his shyness so does not say much. When they have retrieved the stone keys and are ready to leave the village from the entrance they came in for the first time, Koops comes out and pledges to join their party. After they have defeated Hooktail and got their first Crystal Star, Koops says goodbye to his father Koopley, his girlfriend Koopie Koo, and Mayor Kroop in the village, and the three continue their adventure.
In the Bowser intermission at the end of Chapter 2, Bowser and Kammy Koopa are in Petalburg due to their intel suggesting that Princess Peach was spotted there. Bowser eventually does spot Peach, and starts talking to her, only to find out it was a life-sized poster kept by the Koopa Peach fan.
Later in the game, the General White hunt in Chapter 7 as well as several sidequests requires Mario and his partners to revisit the village. When the box containing the Shadow Queen is opened, shadows appear all over the world, including Petalburg, where the characters then know what is going on and cheer up Koops's team. Finally in the game, Goombella's email shows that Koops, after having defeated the Shadow Queen, lives peacefully in the village with Koopley and Koopie Koo and wants to be the mayor of the village.
Additional items are on sale at Niff T.'s shop.
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