Chapter 7

The last Crystal Star appears to be on the Moon. To reach the Moon, Mario and his companions travel to Fahr Outpost to find a cannon to shoot to the Moon. After searching for Goldbob and General White, whose blessings are needed to operate the cannon, Mario & co. enter the cannon and are shot to the Moon. On the Moon, the group discovers the X-Naut Fortress. Once they arrive at the end of it, Lord Crump appears, bragging about his latest creation — Magnus Von Grapple 2.0, and tries once more to defeat Mario and company. After Lord Crump is defeated, the Crystal Star is released.

Meanwhile, Bowser is searching for another Crystal Star in the Poshley Sanctum. A Paragoomba flies in and tells Bowser that Mario has collected every Crystal Star and is heading for the Thousand-Year Door, which contains a great treasure. Bowser announces that he will steal this treasure and defeat Mario.

As Mario and his allies prepare to leave the fortress, they discover that all of the doors have been locked, except for one. In this room, the heroes find TEC, who is running on backup power. He recognizes Mario and tells him to rescue the Princess, who has been taken to the Palace of Shadow, a place that lies beyond the Thousand-Year Door. He then activates an emergency transporter. The group is transported to a room in Rogueport Sewers. After exiting the room, Prof. Frankly meets them at the entrance and urges them to open the Thousand-Year Door.