X-Naut Fortress

Template:Location-infobox The X-Naut Fortress is Grodus' main base of operations which is located on the Moon and the home to the Secret Society of X-Nauts in Paper Mario: The Thousand-Year Door. This place is also where Princess Peach was taken to. The last Crystal Star, the Crystal Star, is held there and Mario and his friends had to use the cannon in Fahr Outpost to reach this place and fight Lord Crump (while driving Magnus 2.0) to get the Star. Grodus traveled between the Mushroom World and his fortress using a Teleportation Machine, which has one end located in his laboratories and the other end located in Rogueport Sewers. The base is also the home of TEC-XX, which is the main computer of the whole fortress. Also, after Mario gets the sixth Crystal Star, Grodus takes Princess Peach and leaves the Fortress (possibly giving it to Lord Crump) so he can go to the Palace of Shadow. After Mario successfully destroys Lord Crump/Magnus Von Grapple 2.0, he gets the seventh Crystal Star. After that, the fortreses explodes and Mario is unable to go back until the final boss is defeated.

The fortress is essentially a five-story building built deep under the Moon. It's all connected by a series of hallways and two elevators. The deeper Mario or Peach go, the dimmer the lighting is.

Enemies

• Elite X-Naut
• Sir Grodus (Never actually fought) (Peach Intermissions only)
• Magnus Von Grapple 2.0 (Chapter 7 Boss)
• Mini-X-Yux
• Mini-Yux
• Mini-Z-Yux
• X-Naut PhD
• X-Naut
• X-Yux
• Yux
• Z-Yux

Trivia

• When the player Spring Jumps into the air duct from the Yux Lab on Sublevel 2 and uses Paper Mode to slip thought the vent on the far right, they will land in a changing stall where Peach used to put on the X-Naut suit. If the player pulls the curtain back, Mario and his partners will become 8-bit. This lasts until the player leaves the room.
• Grodus' room contains a tank filled with Nibbles. This is the only place where the player can see their entire body.

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