Booster Tower
Booster Tower is a tower of amusement belonging to Booster and his Snifits. When Princess Toadstool falls here from the sky, Booster wants to marry her, but Mario saves her.
The building itself is filled with many dangerous traps and wacky enemies. However, the music is strangely soothing, but a second heavy metal-like theme is played as the tower is further explored. Booster is often seen riding a miniature train throughout the tower.
At the entrance of the tower, Mario meets Bowser. With no troops left, he declares Mario, Mallow and Geno members of the Koopa Troop, thus joining Mario's party.
The tower is also the home to Knife Guy and Grate Guy.
Outside
Outside Booster Tower is relatively small with a sign that reads "Welcome" with small Japanese letters that translate to English as "Bukki", which is Booster's Japanese name. At the top of Booster Tower there is a balcony. While Toadstool is trapped up there, Booster uses magic to seal the door closed. The only way the door can be opened is by saying the password which only Booster knows; it is eventually revealed to be whatever name the player used for their file.
Inside
As expected from the view of outside, inside Booster Tower is huge, with many rooms and floors. The floors are a checkered bronze and black. In the upper level of the first room their are photos of the seven generations of Boosters. The inside is also full of the Snifit sub-species "Spookum", Bob-ombs, and the Chain Chomp makes an appearance, too. There is also a Chomp that was locked up for taking a bite out of Booster. Bowser tames this chomp and uses it as a weapon for battle. This particular chomp is a female. This is evident when Bowser says, "...she's a bit shy.". There are many hidden treasures located inside Booster Tower including many coins and Frog Coins and an item called the Goodie Bag which when used during battle adds more coins to the player's total after winning the battle, it can also be sold for 555 coins. There is also a new hammer for Mario called the Masher.
