Mystery Part and Secret Slab

The Mystery Part (Japanese: なぞのパーツ Puzzle Part) and Secret Slab (Japanese: ひみつのせきばん Secret Lithograph) are functionally identical items that appear in Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness and Pokémon Mystery Dungeon: Explorers of Sky. When one is in the bag, certain or Mythical Pokémon will appear on preset dungeon floors. They only appear after the player and their partner have recruited and he tells them about the Marine Resort.

The Mystery Part and Secret Slab are obtained as rewards from random missions, such as the one in the following Wonder Mail password:
 * X-HY NSM8 6&3&
 * 2Q&P 520# 7WQ8
 * Objective: Rescue on floor 7 of Treeshroud Forest.

For Explorers of Sky, here is a Wonder Mail S Code:
 * Q@M=X QYC7R9S X@R67
 * 5%@KM 5R#6J%8 65NP@
 * Objective: Prospect with on floor 1 of Beach Cave.

Note: Rotom also joins the party, however, the player may decline.

Only one of each Legendary species can be obtained.

In other languages
Pezzoenigma e Lastraenigma