- Banjo's pet goldfish Roysten appears in one room of the mansion.
- Monstrous versions of Banjo and Kazooie's heads appear as trophies in a hallway.
- There is a lot of little trophy cases throughout the game but one holds a Mumbo Jumbo figurine.
- On Baron von Ghoul's pajamas there are little icons of Banjo's head and Mumbo Jumbo's head.
- There is a portrait of Klungo in the mansion.
- The Imps featured in the game are designed after the Jinjos.