- Primary Subject: Pokémon Pokopia
- Key Update: Mew can be obtained by collecting 27 Mysterious Slates and completing the hidden Unown mural puzzle
- Status: Confirmed
- Last Verified: March 14, 2026
- Quick Answer: To unlock Mew in Pokémon Pokopia, collect all 27 Mysterious Slates, place them into the Unown mural puzzle in the Withered Wasteland, and activate the portal.
Mew is one of the rare Mythical Pokémon that players can unlock in Pokémon Pokopia, but unlike most Pokémon in the game, it does not appear naturally in habitats around your island.
Instead, obtaining Mew requires solving a hidden puzzle tied to ancient relics known as Mysterious Slates. These items are scattered throughout the world and are part of a secret challenge located in the Withered Wasteland region.
Only after collecting every slate and completing the mural puzzle connected to them will Mew finally appear.
Where Is the Mysterious Mural Located?
To begin the process of unlocking Mew, players must first discover the Mysterious Mural, which is hidden within a set of ruins in the Withered Wasteland.
The entrance to this location is found northeast of the area’s Pokémon Center. As you explore the region, you will come across cracked rock walls that can be destroyed with the Rock Smash ability, allowing access to a larger part of the area.
Once you pass the first breakable wall and reach the next section, turning left will reveal another damaged wall that opens to a stone pathway descending into an underground ruin.
At the bottom of this path, players will find the Mysterious Mural carved into the wall. The mural contains 27 empty slots, each marked with a symbol representing the different forms of the Pokémon Unown, which correspond to the letters of the alphabet as well as special punctuation forms.
The mural’s purpose is to place all 27 Mysterious Slates into their correct positions, with each slate being a collectible relic players discover while exploring.
However, they are not tied to fixed locations and instead appear randomly when breaking glowing golden spots or glowing blocks scattered around Pokopia.
Using Rock Smash on these glowing spots reveals a variety of possible rewards such as fossils, relics, CDs, dolls, or occasionally a Mysterious Slate.
Since the rewards are randomized, obtaining all 27 slates may take some time and requires consistent exploration across the island.
Although the drops are random, players will not typically receive duplicates until they have already collected most of the set, meaning that each slate discovered usually contributes toward completing the puzzle.
How Do You Solve the Mysterious Mural Puzzle?
Once players begin collecting Mysterious Slates, they can return to the mural and place them into the correct slots.
Each slate corresponds to a specific Unown symbol that matches one of the markings on the mural. To determine where a slate belongs, players can inspect the back of the item, which shows the Unown symbol associated with that slate.
When the slate is inserted into the correct position on the mural, the game provides visual feedback such as sparkles or a brief shining effect, confirming that it has been placed correctly.
Players can add slates to the mural gradually as they find them, and there is no need to collect all 27 before beginning the placement process. After every slot in the mural has been filled with the correct slate, the puzzle will finally activate.
Completing the mural triggers a special event in which a glowing portal appears in the center of the mural. Using this portal will summon Mew, giving players the chance to meet and befriend the Mythical Pokémon.
Once it arrives on your island, Mew behaves just like any other Pokémon resident. However, it will initially have no assigned home, so players must place it in an available habitat or house to allow it to settle properly.
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