Secret Storage
- "Expert Levels" redirects here. For information about the Expert Levels in Mario vs. Donkey Kong, see Mario vs. Donkey Kong#Expert Levels.
Template:Worldbox Secret Storage is a special bonus attraction and the last attraction in Mario vs. Donkey Kong: Mini-Land Mayhem! It takes place in the amusement park storage, depositing piles of barrels, ladders, a toy box and a large pipe. The player must collect a certain amount of trophies to unlock new levels in this attraction. However, the attraction itself becomes available after defeating Donkey Kong in Final Ferris Wheel.
The levels of Secret Storage are more difficult and intricate than the main levels, representing a final challenge the player can face. For this reason, they are also referred to as the game's Expert Levels. There are ten levels in both the Normal and Plus Modes. Enemies here include Circus Kongs, Shy Guys, Piranhas with Fire, Thwomps and Snifits. Common objects here are conveyors, Springs, Blue Ladders and Warp Pipes.
Levels
| Level | Preview | Description | Enemies and obstacles encountered |
|---|---|---|---|
| Area X-1 | 
|
This level features Green Pipes and Blue Ladders. | Spikes |
| Area X-2 | 
|
This level features many Spikes, Cannons, and Red Girders. | Spikes |
| Area X-3 | 
|
This level features more Green Pipes and Red Girders. | Spikes, Circus Kongs |
| Area X-4 | 
|
This level features mainly normal conveyors and Purple Conveyors. | Spikes, Shy Guys |
| Area X-5 | 
|
This level features many Red Girders. | Spikes, Shy Guys, Piranhas with Fire |
| Area X-6 | 
|
This level features mainly Red Girders, Purple Conveyors, and Blockers. | Spikes, Thwomps |
| Area X-7 | 
|
This level features many Blockers and Cannons. | Spikes |
| Area X-8 | 
|
This level features many Blockers and Long Springs. | Spikes, Piranhas with Fire, Thwomps, Snifits |
| Area X-9 | 
|
This level features a few Long Springs, Green Pipes, and Cannons. | Spikes, Piranhas with Fire, Snifits |
| Area X-10 | 
|
This level features many Red Girders, Girder Pickups, and Warp Pipes. | Spikes |
Gallery
The background of the attraction
Media
 First music | File info |
| Second music | File info |
| Stage select music (same as for Final Ferris Wheel) | File info |
Names in other languages
| Language | Name | Meaning |
|---|---|---|
| German | Geheimes Lager |
Secret warehouse |
| Italian | Ripostiglio segreto |
|
| Spanish (NOA) | Reserva secreta |
Secret reserve |
| Spanish (NOE) | Almacén Secreto |
Secret Warehouse |
