The Helm of the Princess Peach cruise ship contains a couple references to previous titles in the series.

Each of the six photos of Princess Peach on the wall reference the six entries of the Paper Mario series. Each photo features Peach's design from from a specific game and a background referencing an area from or the game itself.



If you inspect the steering wheel while with Bobby the Bo-omb, he will remark how he once dreamed of being a ship's captain or an admiral, and that he'd make a "pretty cool admiral".


This is a reference to Admiral Bobbery, Mario's Bo-omb partner from Paper Mario: The Thousand-Year Door.