The Inferno is an important area, despite being behind a locked door. Mumbo's Skull is found inside, and his magic is required to power up several attractions in the park. It also has a long spiral structure in the center with a Jiggy at the top. Banjo and Kazooie must Split-up in order to obtain the Jiggy. It contains a Warp Pad, mainly for Mumbo to get out quickly and power up the other areas. Finally, the Inferno is one of the random locations where the player will find Groggy which Banjo must feed with a Burger and Taxi Pack back to his mother Mrs. Boggy as part of a quest to obtain a Jiggy.
- If the player comes back to The Inferno as Van Banjo, they can go through the Van door inside and get a Cheato Page.
- The lava inside The Inferno will not harm Van Banjo.
- When images of The Inferno were first shown, it was believed that it was located in Hailfire Peaks.
- Mumbo's Skull in The Inferno is similar to the one in Hailfire Peaks.