The Great Tower of Bowser Land is the final level of World Bowser and the game itself.
In the first part of the level, the players will encounter Bowser’s car, which is now malfunctioning. The players will have to go on a platform to get to the next part of the level. the players must get past a couple of Fire Bro.s and raining fireballs. Then, there is a well with several Bullys on it. The player can simply use the Super Bell to knock them off. The next part includes three Cat Goombas randomly running around and using their dive attack. Eventually, the player or players will meet up with Captain Toad who lets them use the platform to ride down to the main tower. Once the players reach the tower and head forward, Bowser will appear and use a Super Bell to transform himself into Meowser. Meowser will then chase the players up the tower destroying platforms in the process. The players must avoid Meowser's attacks until they hit a POW Block to knock him off. After reaching the midway flag, Meowser will use a Double Cherry to make clones of himself making the chase even more hectic. The players must now avoid the Meowsers as they smash through the tower and climb up it. As the players ascend higher and higher, more Meowsers will appear and, eventually, Bowser is seen himself holding the jar of Sprixies. After hitting the giant POW Block five times, Bowser and all of the Meowsers are sent away and the Sprixies are freed once and for all.
- Green Star 1: Just before entering the clear pipe, drop down the roof to get the first Green Star.
- Green Star 2: At the spinning wheel, all of the Bullys must be taken down in order to earn the second Green Star. This can be easily done using the cat form.
- Green Star 3: The final Green Star can be obtained by collecting all of Green Coins after heading through the Green Star Ring on the tower. However, the players must be careful of Meowser.
- The stamp can be found on the very last screen on a nearby tree near the goal pole. The stamp shows an image of Meowser.