Pokemon Pokopiahides one of its biggest rewards behind a secret puzzle, and players who know where to look can unlock the mythical Mew by solving the Mysterious Slate wall tucked away in the game's starting zone.
What the Mysterious Slate Puzzle Is
Scattered across the world of Pokopia are 27 Mysterious Slates, each marked on the back with a symbol tied to Unown, the hieroglyph-like Pokémon. Collecting all 27 and placing them correctly on a hidden puzzle wall spawns Mew, who then becomes a companion players can befriend as a mythic reward.
Here's the thing: the puzzle is easy to miss entirely. The wall is buried inside a secret temple, and getting there requires punching through dirt walls near a familiar landmark.
How to Collect All 27 Mysterious Slates
Mysterious Slates drop from buried treasure blocks, identifiable by their distinctive gold glow. These blocks appear across all main map locations as well as on Drifloon's Dream Islands.
A few things worth knowing before you start farming:
- The Dowsing Machine is the most efficient tool for tracking down buried treasure blocks
- Blocks are easier to spot at nighttime thanks to the gold glow, though they can be found any time of day
- Players reportedly cannot receive duplicate Mysterious Slates until they have collected all 27 for the first time, which removes a lot of the grind frustration
- Setting up a dedicated storage box for slates is strongly recommended so they don't get mixed in with other materials scattered across locations
info
If you accidentally misplace a Mysterious Slate, the no-duplicate rule means you should still be able to recover missing ones before duplicates start appearing.
Finding the Hidden Puzzle Wall in Withered Wasteland
Withered Wasteland, the game's starting area, is where the secret temple sits. The entrance is easy to walk past without noticing.
Here's how to reach it step by step:
- Head to the Pokemon Center in Withered Wasteland
- Follow the red brick pathway along the right side of the building until it dead-ends at a dirt wall
- Punch through the dirt wall to reveal a new section of the map
- Do not advance further into that new area. Instead, look left from the spot where you just broke through
- A second patch of dirt rubble will be visible nearby. Break through it to uncover a stone staircase
- Descend the staircase into the hidden temple below
The puzzle wall inside the temple features tiles representing different Unown variants, one for each of the 27 Mysterious Slates.
How to Solve the Puzzle and Unlock Mew
Solving the puzzle itself is straightforward once all 27 slates are in hand.
- Place a Mysterious Slate on the ground to view the Unown symbol marked on its back
- Match each slate to the corresponding Unown tile on the puzzle wall
- Repeat this for all 27 slates until the wall is complete
Once the final slate is placed, the puzzle triggers and Mew appears. The mythical Pokémon will follow players around after being befriended. Players will also presumably want to construct a habitat for Mew using the game's Habitat Dex system.
danger
You'll want all 27 slates collected before heading to the temple. There is no partial completion reward, so the full set is required to trigger Mew's appearance.
Why This Puzzle Stands Out
The Mysterious Slate puzzle is a strong example of Pokopia's approach to exploration rewards. Rather than placing Mew behind a straightforward quest or store purchase, the game hides the mythical Pokémon behind environmental discovery, a multi-step collection challenge, and a lore-adjacent puzzle using Unown, one of the franchise's most iconic mystery Pokémon. Players who explore thoroughly and use tools like the Dowsing Machine will find the payoff well worth the effort.
Source: Gamespot
Make sure to check out more:
Frequently Asked Questions (FAQs)
How many Mysterious Slates are there in Pokemon Pokopia?
There are 27 Mysterious Slates in total. Each one is marked with a unique Unown symbol and must be placed on the corresponding tile on the hidden puzzle wall to unlock Mew.
Can you get duplicate Mysterious Slates in Pokopia?
Reportedly, players cannot receive duplicate Mysterious Slates until they have collected all 27 for the first time. This means you can collect every slate without worrying about getting stuck on repeat drops.
Where is the Mysterious Slate puzzle wall located?
The puzzle wall is inside a hidden underground temple in Withered Wasteland. To access it, players must punch through a dirt wall near the Pokemon Center and then find a second breakable dirt section to the left that reveals a stone staircase leading down.
What happens after you solve the Mysterious Slate puzzle?
Completing the puzzle causes Mew to spawn. Players can then befriend Mew as a mythic companion. Mew will follow you around the world of Pokopia, and players can also build a dedicated habitat for the mythical Pokémon.
