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Overview

Mew is the final entry in Pokopia's Pokedex (#300) and the only Mythical Pokemon in the game. Unlike other Legendary and Mythical Pokemon that are encountered through story events or building kits, Mew is unlocked by completing a collection challenge that spans the entire game. Players must find all 27 Mysterious Slates, bring them to the hidden Mysterious Mural in Withered Wasteland, and place each slate in its matching Unown alphabet slot. Once the mural is complete, Mew appears and joins your island permanently.

This is one of the longest side quests in Pokopia. Expect the slate collection process to take many in-game days, since slates are rare drops from randomized treasure blocks. The good news is that the game guarantees no duplicate slates until you have found all 27, so every slate you dig up brings you one step closer.

Quick Reference

Prerequisites

Before you can start collecting Mysterious Slates and working toward Mew, you need two key tools. Both are obtained early in the Withered Wasteland, the first region of the game.

Rock Smash

Rock Smash is the ability used to break open Glowing Blocks that contain buried treasure, including Mysterious Slates. You learn Rock Smash from Hitmonchan during the early stages of the Withered Wasteland storyline. Without Rock Smash, you cannot interact with Glowing Blocks at all, so this is the very first requirement.

Dowsing Machine

The Dowsing Machine is essential for locating hidden Glowing Blocks that are buried underground and invisible to the naked eye. While some Glowing Blocks are visible on the surface as glowing dirt or grass patches, many more are hidden beneath the ground. Without the Dowsing Machine, you will miss a significant number of potential slate drops.

To obtain the Dowsing Machine, complete Hitmonchan's follow-up request after learning Rock Smash. Hitmonchan asks you to climb the hill west of the Withered Wasteland Pokemon Center. At the top, break the rocks with Rock Smash to reveal a yellow Poke Ball containing the Dowsing Machine.

Search Specialty Pokemon

The Dowsing Machine works best when paired with a Pokemon that has the Search specialty following you. When you press and hold A to activate the Dowsing Machine, your companion Pokemon points toward the direction of nearby buried items and provides directional hints like "below here" or "above here." Good early options include:

Flying or floating Pokemon are recommended for Search duty because ground-bound Pokemon can get stuck when crossing water or uneven terrain.

Step 1: Collect All 27 Mysterious Slates

Mysterious Slates are stone tablets with a carved design on the front and an Unown alphabet letter engraved on the back. There are 27 in total: one for each letter of the alphabet (A through Z) plus one combined slate covering both the ! and ? Unown forms.

Where Slates Come From

Slates are found exclusively inside Glowing Blocks (also called treasure blocks). These are the same blocks that also drop Lost Relics, Fossils, CDs, and other buried items. Breaking a Glowing Block with Rock Smash gives you a random item from the treasure pool. A Mysterious Slate is not guaranteed from every block, so you will need to break many blocks over time.

Glowing Blocks are found throughout all five regions and on Dream Islands:

How to Find Glowing Blocks

1. Look for the yellow glow. Some Glowing Blocks are visible on the surface as patches of dirt or grass with a faint golden glow. Walk up to them and use Rock Smash to break them open.

2. Use the Dowsing Machine for hidden blocks. Many Glowing Blocks are buried underground and invisible. Equip the Dowsing Machine, have a Search-specialty Pokemon follow you, and press and hold A. The machine beeps faster as you get closer to a buried block, and your Pokemon companion points in the right direction.

3. Break the block with Rock Smash. Once you locate a Glowing Block (visible or hidden), stand next to it and use Rock Smash to crack it open. The item inside is added to your inventory automatically.

No Duplicate Slates

The game guarantees that you will never find a duplicate Mysterious Slate until all 27 unique slates have been collected. This means every slate you dig up is progress toward the full set. Once you have all 27 and complete the mural, duplicate slates can start appearing again. These extra slates serve no mural purpose but can be kept or traded with other players.

Identifying Your Slates

Each Mysterious Slate has an Unown symbol on its back that tells you which slot it belongs to on the mural. To check which letter a slate represents, open your inventory, select the slate, and rotate it 180 degrees to view the back. You can also use the inventory's auto-sort function to arrange your slates in alphabetical order, making it easy to see which ones you still need.

Step 2: Find the Mysterious Mural

The Mysterious Mural is a large stone wall with 27 empty indentations, each shaped to accept a specific Mysterious Slate. It is located in a hidden underground chamber in the Withered Wasteland.

Directions to the Mural

1. Travel to the Withered Wasteland Pokemon Center. This is the main hub for the first region.

2. Head northeast from the Pokemon Center. Follow the path going to the right of the building. You will notice the pathway dead-ends at a dirt wall.

3. Break the dirt wall with Rock Smash. Smash through the wall to reveal a new section of the map with a tunnel-like underpass.

4. Look for chiseled blocks on the left. Inside the revealed area, find a section on the left side with distinctly chiseled blocks in the wall.

5. Break through the second wall. Use Rock Smash on the chiseled blocks to uncover a stone staircase leading downward.

6. Descend the stairs. Walk down the staircase to enter the underground chamber containing the Mysterious Mural.

The mural wall displays the entire Unown alphabet with 27 indentations. Each indentation corresponds to one of the 26 letter forms (A through Z) plus one combined slot for the ! and ? form.

Step 3: Solve the Unown Puzzle

Placing slates on the mural is straightforward. The puzzle is about matching each slate to its correct Unown symbol on the wall, not about any complex arrangement or pattern.

How to Place Slates

1. Open your inventory and select the Mysterious Slate you want to place.

2. Check the back of the slate to see which Unown letter is engraved on it.

3. Find the matching symbol on the mural wall. The wall displays all 27 Unown forms. Look for the indentation that matches your slate's letter.

4. Stand in front of the correct slot and interact with it to place the slate. Use ZL to fine-tune the positioning. Orient the slate so the letters face the wall and the carved design points outward.

5. Listen for confirmation. When a slate is placed correctly, you hear a confirmation jingle and see a sparkle animation. If the slate does not lock in, you have the wrong slot. There is no penalty for trying the wrong spot.

You do not need to place all 27 slates in a single visit. You can return to the mural room whenever you find new slates and add them one at a time. Standing on nearby blocks can help you reach higher slots on the wall.

Tracking Your Progress

Visit the mural room periodically to see which Unown letter slots are still empty. The filled slots display the slate you placed, while empty slots remain as dark indentations. This gives you a clear picture of how many slates you still need to find.

Step 4: Befriend Mew

Once all 27 Mysterious Slates have been placed on the mural, the fragments combine to form a complete picture. This triggers a special cutscene where Mew, the Mythical Pokemon, appears in the mural room. After the encounter, Mew joins your island as a permanent resident.

Mew's Details

Using Mew's Teleport Specialty

Mew has the Teleport specialty, which is one of the most useful specialties in the game. If you speak to Mew while using the Pokedex to search for another Pokemon, Mew can instantly warp you to that Pokemon's location. This effectively gives you a fast-travel point to any befriended Pokemon across all your islands. Other Pokemon that share this specialty include Abra, Kadabra, and Alakazam.

Setting Up Mew's Home

Mew spawns without an assigned habitat after being befriended. You will need to build or assign a suitable home for it. Since Mew prefers a Warm environment, check the Habitat Dex for compatible setups. Feed Mew Sweet-flavored foods (such as Leppa Salad or Leppa Bread) to boost its Comfort level. Place furniture and items matching its likes (strange, luxury, and play-related items) inside its dwelling to push Comfort toward the Awesome tier.

Tips for Faster Slate Collection

Collecting all 27 slates is the most time-consuming part of unlocking Mew. Here are strategies to speed up the process.

Search Every Region Daily

Glowing Blocks refresh every day at the daily reset. Make a habit of scanning each region with the Dowsing Machine as part of your daily routine. Do not limit yourself to one area. Bleak Beach, Rocky Ridges, Sparkling Skylands, Palette Town, and Dream Islands all have their own treasure block spawns.

Visit Dream Islands

Dream Islands are randomly generated islands that contain their own set of Glowing Blocks. These blocks also refresh, giving you additional chances at slates each day. If you have unlocked Dream Islands through the Withered Wasteland story arc, make sure to visit them regularly.

Feed Mosslax Bitter Food

Feeding Mosslax bitter food before going on a treasure hunt increases the odds of finding rare items from Glowing Blocks. A Salad made with Leaf and Seaweed counts as bitter food. Give Mosslax a bitter meal, then head out with your Dowsing Machine to maximize your chances of pulling Mysterious Slates from the treasure pool.

Power Up Rock Smash

Some Glowing Blocks in deeper areas of Rocky Ridges require a powered-up version of Rock Smash to break. Eat a Tomato Hamburger Steak (or a regular Hamburger Steak) to temporarily boost your Rock Smash power. Do not skip these tougher blocks, as they could contain slates you need.

Use Sundays for Extra Spawns

Sundays are designated as Lucky Days in Pokopia, which increases the spawn frequency of Glowing Blocks. Plan your biggest treasure-hunting sessions for Sundays to encounter more blocks in a single sweep.

Break Every Glowing Block You See

Even if you are not actively hunting for slates, break every Glowing Block you come across during normal gameplay. Slates stack in your inventory, and you can place them on the mural whenever it is convenient. Since drops are randomized, every block is a potential slate.

Summary Checklist

1. Learn Rock Smash from Hitmonchan in Withered Wasteland.

2. Obtain the Dowsing Machine from the hill west of the Withered Wasteland Pokemon Center.

3. Get a Pokemon with the Search specialty (Pidgey, Venonat, Drilbur, etc.).

4. Break Glowing Blocks across all five regions and Dream Islands to collect all 27 Mysterious Slates.

5. Find the hidden Mysterious Mural northeast of the Withered Wasteland Pokemon Center.

6. Match each slate's Unown symbol to the correct indentation on the mural wall.

7. Place all 27 slates to complete the mural and summon Mew.

8. Build Mew a Warm habitat and enjoy its Teleport specialty.

Related Articles

• Mew (full Pokemon profile)

• Mystery Slates (detailed slate reference)

• How to Complete the Mysterious Mural (mural walkthrough)

• Glowing Blocks (Buried Treasure) (treasure block mechanics)

• Dowsing Machine (tool guide)

• Legendary and Mythical Pokemon (all legendaries overview)

• Legendary Pokemon Guide (step-by-step for every legendary)

• Pokedex Completion Rewards (rewards for filling the Pokedex)