The Great Tower of Bowser Land

The Great Tower of Bowser Land (known as The Great Tower of Bowser World in the British English version), also known as  is the final standard course of World Bowser, and the final main course in Super Mario 3D World. It is set in an amusement-park themed Bowser's Castle, with a very tall tower in the center. Unlocking this level requires 170 Green Stars.

Layout
The course begins near the remains of the Koopa Chase Lv2, with a zipline right next to it; scratching the car while wearing a Cat Suit will cause it to light up while the horn blares. The zipline leads onto a rooftop with obstacles that include bottomless pits, debris from the volcano in the background, and spikes in the floor. Upon reaching the Crazy Clown Ferris Wheel, Captain Toad greets the player(s) as he stands next to another zipline.

Once the player(s) reach the large tower in the center, Bowser appears and uses a Super Bell to turn himself into Meowser. The first phase of the battle involves climbing up the tower while Meowser climbs and slides down the tower's walls. Eventually, he will perch himself on a ledge and start shooting waves of fireballs, but hitting the POW Block beneath him will launch Meowser into the air, revealing a Clear Pipe and ending the first phase.

Once the Clear Pipe has been entered, Meowser will reappear and pursue the player(s) briefly before letting out a roar and emitting a red light, signaling that he has used the Double Cherry. Meowser and his double will catch up to the player(s) before leaping upward, and the Checkpoint Flag will appear at the end of the clear pipe. The second phase has begun.

The second phase of the fight involves climbing up the tower again while avoiding Meowser and his doubles as they burst out of the walls to swipe at the player(s), as well as continuing to climb up and slide down the walls, like in the first phase. Where a Meowser will burst out of the wall will be revealed via spotlight just prior to his appearance. The true Meowser can be found at the top of the tower, standing on a Super POW Block with the Sprixie Princesses in tow. He will shoot waves of fireballs to prevent anyone from approaching him, and he is surrounded by four doubles, with the two at the back also spitting out single fireballs to assist him. The Super POW Block must be hit four times to finally defeat Meowser.

Upon defeating him, the Clear Pipe leading to the Goal Pole reveals itself, and the course ends with all seven Sprixie Princesses rescued.

During the credits, Mario, Luigi, Peach, and Toad return to the Mushroom Kingdom, as do Captain Toad and the other Toads. Bowser is left trapped inside a bottle, while Boom Boom is upset and Pom Pom tries to comfort him. The Sprixie Princesses, their people and Plessie also give their new friends a fond farewell. Additionally, Rosalina appears if the player replays the level after unlocking her.

Green Stars

 * Green Star 1: After getting off of the first zipline, the Green Star is on the rightmost side of the highest part of the first building the player lands on.
 * Green Star 2: On the Ferris Wheel, the four Bullies must be knocked off the platforms to reveal the second Green Star. If all the Bullies are knocked off, the Green Star will reveal in the center of the Ferris Wheel.
 * Green Star 3: During the first phase of the final battle, revealed after collecting every Green Coin from the Green Star Ring.

Stamp

 * At the end of the stage, near the Goal Pole, there is a bell tree with the stamp floating directly above it. The stamp is of Meowser.

Trivia

 * The music that plays during the second phase of the fight with Meowser on this level, "The Great Tower Showdown 2", is available in Super Smash Bros. for Wii U and Super Smash Bros. Ultimate as a track that can be heard on the Mario Galaxy stage and any Super Mario-series stage, respectively.

Bowsers großer Turm