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Stuck on purple goo blocking your path in Pokémon Legends Z-A? Learn how to clear sludge piles in Lumiose City using Water-type moves and unlock hidden areas with this quick guide.
As you’re wandering through Lumiose City in Pokémon Legends Z-A, you’ll quickly notice something gross blocking your way: purple sludge piles scattered throughout the urban landscape. These gooey obstacles are everywhere, preventing you from accessing entire sections of the city, hidden items, and important story locations.
The good news? Unlike previous Pokémon games where you’d need to track down specific HMs or TMs to teach your Pokémon obstacle-clearing abilities, the solution here is refreshingly simple. You don’t need any special moves or rare abilities—just the right type of attack.
Here’s the straightforward answer: any Water-type move will clear purple sludge piles. Seriously, that’s it. Water Gun, Bubble, Aqua Jet, Surf—if it’s a Water-type attack, it’ll wash away the gunk and open up your path.
This is way more intuitive than the old HM system. Instead of needing a specific move like Cut or Rock Smash, you just need to think logically: what cleans up slime? Water. The game respects your intelligence here, and honestly, it’s refreshing.
If you chose Totodile as your starter Pokémon, congratulations—you’re set from the beginning. Totodile learns Water-type moves naturally and can handle sludge clearing duties throughout your entire playthrough.
But what if you went with Tepig (Fire-type) or Chikorita (Grass-type)? Don’t panic. Water-type Pokémon are incredibly abundant in Lumiose City’s Wild Zones, especially early on. The game practically throws them at you.
Easy-to-find Water-types in early game:
Pro tip: Catch a Water-type early even if you’re not planning to use it on your main team. Having one in your party specifically for exploration purposes will save you headaches later. You don’t need to level it up much—even a low-level Water-type with basic moves will clear sludge just fine.
Here’s something interesting that the game doesn’t explicitly tell you: certain Psychic-type moves can also clear sludge piles. This seems random at first, but there’s probably some logic about psychic energy manipulating matter or something.
However—and this is important—not all Psychic moves work. It’s weirdly specific:
The inconsistency here is honestly confusing (pun intended). Since the game doesn’t clearly explain which Psychic moves work and which don’t, it’s more reliable to just stick with Water-type attacks. Why gamble on whether your Psychic move will work when Water always does the job?
That said, if you’re in a pinch and your only available Pokémon knows Confusion, give it a shot. It might save you from backtracking to grab your Water-type from the box.
Here’s something that might surprise you: clearing purple sludge piles awards your Pokémon experience points. It’s not a massive amount, but it’s free XP for basically using a move outside of battle.
This creates an interesting incentive structure. Even if you’re not immediately exploring in a particular direction, it’s worth clearing sludge piles whenever you see them because:
As you work through Pokémon Legends Z-A side quests, you’ll encounter these sludge piles constantly. Clearing them as you go makes exploration much smoother than ignoring them and having to return later.
While the game doesn’t explicitly explain it, the purple sludge situation adds environmental storytelling to Lumiose City. The city clearly has a pollution problem, and you’re actively helping clean it up throughout your adventure. It’s a nice touch that ties into the urban redevelopment themes in Legends Z-A.
This is part of a broader trend in Legends Z-A where your Pokémon’s moves have practical applications outside of battle. You’re not just fighting—you’re actively interacting with and improving the environment around you. Expect to use other moves for different obstacles as you progress through the story.
To clear purple sludge:
Best early Water-types for sludge clearing:
Alternative method:
For more details about exploring Lumiose City and all the obstacles you’ll encounter, visit the official Pokémon Legends website. You can also grab your copy of the game from the Nintendo Store.
Bottom line: Purple sludge in Legends Z-A is less of a puzzle and more of a gentle nudge to keep a diverse team. Water-type moves are the answer, they’re easy to find, and clearing goo gives you bonus XP. It’s one of the more player-friendly obstacle systems in recent Pokémon games, and honestly, that’s a win for everyone who remembers the frustration of HM management in older titles.
Also Check: Pokémon Legends Z-A: Your Complete Guide to Alpha Pokémon