Top-Hat Tower

Top-Hat Tower is a location in Super Mario Odyssey, found in the Cap Kingdom. Inside it is the first platforming segment in the game, and features the game's first boss fight against Topper at the top. Due to The Cap Kingdom being based on London, England, it is most likely a parody of Elizabeth Tower (also known as Big Ben), although it lacks a clock tower.

Description
Top-Hat Tower is a tall tower overlooking the rest of Bonneton. It is located west of the Central Plaza, across a hilly bridge. The main body of the tower is pure white, topped with a large black top hat, hence the name.

Inside the tower is a simple platforming segment, where Mario can capture for the first time; he is required to capture some frogs and jump up inside the tower in order to progress. There are moving platforms and Micro Goombas inside to hinder the player's progress, and small bodies of water to swim in. At the end of the segment, a Power Moon can be found after completing Cascade Kingdom, and another secret Power Moon can be found inside a chest.

After completing the platforming segment, the player can access the top of the tower. Upon first visiting, the hat-shaped airships on the top are heavily damaged, with Bonneters assessing the damage. Mario must make it to the very top of the top hat and battle Topper in order to access the Cascade Kingdom.

During later visits, Captain Toad can be found at the top of the tower where Topper is fought, and rewards Mario with a Power Moon when spoken to. There is a scarecrow with a timer challenge right outside of the tower, a platforming challenge on a hidden platform under the tower, where Mario must capture a Paragoomba and fly over a rushing poisonous stream, and another platforming challenge behind a door on the side of the top hat, where the player must maneuver through moving platforms assisted by spark pylons. There is a Power Moon located under the brim of the top hat as well, requiring a precise jump in order to reach it. After completing the main story, the hat-shaped airships are fully repaired, and the Cap Kingdom's Koopa Freerunning race starts at the top of the tower.

Residents

 * Frogs
 * Bonneters
 * Captain Toad
 * Koopa Troopas

Enemies and obstacles

 * Micro Goombas
 * Paragoombas
 * Poisoned Water
 * Topper (boss)