| Engulfed Castle | |
|---|---|
| [[File:|]] | |
| Location | Serene Shores |
| Sublevels | 5 |
| Rescues | 2 |
| Treasures | 17 |
| Onions | 0 |
| Suggested Pikmin | 
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The Engulfed Castle is a cave in the Serene Shores in Pikmin 4. It has five sublevels. Only Blue Pikmin can access its entrance, as it is submerged in undrainable water. Hazards of all types appear throughout the cave; Glow Pikmin spawned from Glow Seeds or a suitably upgraded Oatchi can be utilized to clear them, although neither are strictly required, as all hazards can be destroyed or circumvented even with just Blue Pikmin.
The boss of this cave, the Waterwraith, is unique in that it will drop from the ceiling after five minutes have passed in any sublevel. It is extremely dangerous, instantly killing both Pikmin and enemies indiscriminately. It cannot be hurt whatsoever until the cave's final sublevel, where Violet Candypop Buds will allow for the creation of its only weakness, Purple Pikmin. Defeating the Waterwraith unlocks an exit leading to the top of an otherwise inaccessible hill, allowing passage and collection of a good portion of treasures in the Serene Shores' upper half. This cave has 
× 1,145 worth of treasure.
How to reach
The entrance to Engulfed Castle is found in a flooded alcove beneath the clay bridge next to the Water's Edge base. No matter if it is past noon or not, the entrance will always be submerged in water, meaning only Blue Pikmin can enter and exit from here.
The exit can also be used to re-enter the cave. Because it is not submerged, any Pikmin type can enter or exit from here, although the game will still only recommend Blue Pikmin. It is found in the area behind the Water's Edge base, up from the bag that must be pushed down beforehand.
Notes
Olimar's Voyage Log
Waterwraith
On the first four sublevels, the Waterwraith will drop down from the ceiling after five minutes. There are a few things to keep in mind about it:
- It will patrol the sublevel, attempting to target and crush Pikmin with its rollers. However, these rollers will also indiscriminately destroy traps and instantly kill most enemies. Use this to your advantage.
- Unlike Pikmin 2, the Waterwraith can navigate into corners to crush Pikmin. As such, hiding in corners is generally ineffective. Instead, run to areas with green floors if one needs to escape from it; the Waterwraith will refuse to enter those areas and will disengage the chase, offering some breathing room.
- The Waterwraith moves noticeably slower compared to its depiction in Pikmin 2. It is relatively easy to outmaneuver it while riding Oatchi, but be cautious: One wrong move could result in the Waterwraith crushing him, leaving your entire army to its mercy. Additionally, the Waterwraith is powerful enough to instantly knock out Oatchi if he is rolled over without armor upgrades.
- The Waterwraith prioritizes crushing Pikmin above all else and pays no mind to leaders. Using either player character as bait won't work.
- There is absolutely no way to harm it until the final sublevel, so don't even bother trying. However, items such as Ice Bombs and Lightning Shocks can stun it in a pinch, allowing for a getaway if cornered.
- Move quickly and efficiently to try and complete as much of the sublevel as possible before it shows up. If worse comes to worst, you can always return to the cave after completing it to collect the remaining treasures.
- Once defeated on the final sublevel, the Waterwraith will never respawn, even on earlier sublevels, allowing for one to take their time when collecting any treasures that were left behind.
Sublevel 1
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- Treasures:
Hoop of Passion
Ice Sword
Juicy Gaggle
Secured Satchel
Vanishing Cookie (Inside Fiery Bulblax)
- Enemies:
Honeywisp × 1
Fiery Blowhog × 2
Pyroclasmic Slooch × 2
Fiery Bulblax × 1
Waterwraith × 1 (Doesn't respawn after being defeated)
- Obstacles:
- Tools:
- Wild Pikmin:
Blue Pikmin × 10 (if 50 or less Blue Pikmin)
- Others:
This sublevel places an emphasis on fire-related hazards and enemies, already putting you at an innate disadvantage due to your lack of Red Pikmin. Do not get discouraged, and keep in mind that this cavern is possible to complete. If Oatchi has been upgraded with his Scorch Guard, this sublevel will be much easier to complete, as he can safely handle most of the enemies and hazards with minimal risk to himself. Failing that, you may wish to grow some Glow Pikmin, which will be of great help throughout the entire cavern due to their immunity to all hazards.
From the beginning of the sublevel, the first priority should be taking out the Pyroclasmic Slooch next to the base, as it will block the transit of the sublevel's treasures, and destroying the dirt wall guarding the exit, to allow for a hasty retreat if the Waterwraith cannot be escaped from. If Oatchi is fireproof, he can swiftly defeat it in a few chomps. If he is not, things will get complicated: You will need to lure it into water to extinguish its flames, and then charge it with your Blue Pikmin to take it out. Alternatively, a Glowmob from a modest Glow Pikmin squad can quickly take it out. Once it is safely defeated, make your way towards the exit hole, which is guarded by a Fiery Blowhog, a dirt wall, and has a fire geyser nearby. There are also five wild Blue Pikmin sprouts here, if you entered the cave with 50 or less Blue Pikmin.
To take out the Fiery Blowhog with no causalities, have your Pikmin charge the back, and be ready to whistle them back when it bucks forward. If Glow Pikmin are available, you may also wish to throw a handful onto it and let them kill it as you work elsewhere, as they are immune to the fire. Assigning Oatchi to destroy the wall in the meantime is a good idea, as he cannot slip through the iron bars. Don't forget to take out the fire geyser too or it may kill Pikmin carrying items through this area.
Optionally, there are a pair of eggs dead east of the base, guarded by a single fire geyser. If any Blue Pikmin have lost their flowers from the fire, or Oatchi has taken damage, you may wish to visit it to re-flower them or heal Oatchi with the nectar.
Regardless, as they work, move through the iron bars west of the hole (facing north). Your objective should be lowering the iron bars, which you can do via a button to the north, in the area with the green-tinted floor on the map. Ignore the Hoop of Passion for the time being, as the route the Pikmin follow if the bars aren't lowered takes them dangerously close to a Fiery Bulblax. Instead, head north to the aforementioned area. Break the fire geyser near the button, and then have your Pikmin break the dirt wall to access the button. Hit it to lower the fences, at which point Oatchi, finished with the earlier dirt wall, should attempt to make his way back to you.
With the entire sublevel accessible, there are a few paths to take. You can safely assign three Pikmin to carry back the Hoop of Passion with the bars lowered. There is a treasure inside the Fiery Bulblax, which will require some effort to defeat. If Oatchi is not fireproof, your only chance is to extinguish its flames by luring it into a nearby pond, and then Rushing Oatchi into its back before it reignites, but this is very risky. Given the Waterwraith's impending arrival, you may wish to instead use items on it to save time. Tossing two bomb rocks at it for instance, will instantly kill it. If Oatchi is fireproof, you may also simply have him attack the Fiery Bulblax while working on collecting the treasure on the west side of the sublevel to be efficient, but bear in mind that he will take a significant amount of damage from its bites and may be knocked out, so keep an eye on his health and be ready to use a Scrummy Bone if necessary. Whatever the case, it will spit up the Vanishing Cookie when it dies. With it dead, you can also safely assign Pikmin or Oatchi to carry the nearby Secured Satchel back, as well.
There are two treasures on the west side of the sublevel, a Juicy Gaggle and an Ice Sword, guarded by a handful of fire geysers, a Fiery Blowhog and a Pyroclasmic Slooch. Defeat these two enemies and destroy the geysers the same way you did earlier and assign Pikmin to carry the two treasures back. If you have been relatively efficient, it is possible to collect all the treasures before the Waterwraith's arrival. If not, note that the Waterwraith will refuse to enter areas with grassy floors, such as the ones around the Secured Satchel and the exit hole. If the Waterwraith is blocking the Pikmin's route, hide in those spots until it moves away, letting you continue carrying the treasures.
Sublevel 2
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- Treasures:
Crush Nugget × 2 (Inside Bulborb)
Daughter of the Earth (Buried)
- Enemies:
Albino Dwarf Bulborb × 6
Bulborb × 1
Pearly Clamclamp × 1 (Doesn’t respawn once defeated)
Fiery Dweevil × 2- Waterwraith × 1 (Doesn't respawn after being defeated in sublevel 5)
- Obstacles:
Dirt wall x 2- Tools:
- Wild Pikmin:
- Blue Pikmin × 10 (if 50 or less Blue Pikmin)
- Others:
Castaway (Inside Pearly Clamclamp)
Sublevel 3
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- Treasures:
Child of the Earth (Buried)
Memory Fragment (Bottom...Probably?)
Scaly Custard- Enemies:
Withering Blowhog × 1
Wollyhop × 2
Anode Dweevil × 2- Honeywisp × 2
Joustmite × 1- Waterwraith × 1 (Doesn't respawn after being defeated in sublevel 5)
- Obstacles:
- Dirt wall x 3
- Tools:
- Wild Pikmin:
- Blue Pikmin × 10 (if 50 or less Blue Pikmin)
- Others:
Sublevel 4
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- Treasures:
Difficult-Choice Totem
Insect Condo (Inside Startle Spore)
Turn-of-Events Track
Velvety Dreamdrop- Enemies:
Moldy Dwarf Bulborb × 4- Honeywisp × 1
Startle Spore × 1
Venom Dweevil × 4 (2 carrying Bomb rocks)- Waterwraith × 1 (Doesn't respawn after being defeated in sublevel 5)
- Obstacles:
- Dirt wall x 1
- Tools:
- Wild Pikmin:
- Blue Pikmin × 10 (if 50 or less Blue Pikmin)
- Others:
Sublevel 5
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- Treasures:
Glinty Circular Disc (Inside Waterwraith)
Noble Goo (Buried)
- Enemies:
Mitite × 1 (Only if Waterwraith was killed in an earlier visit)- Waterwraith × 1 (Doesn't respawn after being defeated in sublevel 5)
- Obstacles:
- Bag x 1
- Numbered gate x 1
- Tools:
- Nectar egg x 2
- Wild Pikmin:
- Blue Pikmin × 5 (if 50 or less Blue Pikmin)
- Others:
- Castaway
Candypop Bud (Purple) × 2
Gallery
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Names in other languages
| Language | Name | Meaning |
|---|---|---|
 Japanese |
深海の城? Shinkai no Shiro |
Deep Sea Castle |
 Chinese(traditional) |
深海之城 Shēnhǎi zhī Chéng |
Deep Sea Castle |
 Chinese(simplified) |
深海之城 Shēnhǎi zhī Chéng |
Deep Sea Castle |
 Dutch |
Onderwaterburcht | Underwater castle |
 French |
Fort englouti | Engulfed fort |
 German |
Unterwasserburg | Underwater Castle |
 Italian |
Castello subacqueo | Underwater castle |
 Korean |
심해의 성 Simhae-ui Seong |
Deep Sea Castle |
 Portuguese |
Castelo abissal | Abyssal castle |
 Spanish |
Castillo abisal | Abyssal castle |
Trivia
- This cave is a direct homage to the Submerged Castle cavern from Pikmin 2, taking direct inspiration from both the original cave's mechanics and layout. In fact, many of the sublevel layouts are actually direct recreations of the Submerged Castle's sublevels. However, there are some notable differences:
- No sublevel hole is clogged. A number of the exits are protected by dirt walls or sticky mold instead.
- In sublevel 2, a single adult Bulborb patrols the sublevel, followed by a gaggle of Albino Dwarf Bulborbs, a reference to the Bulbmin in the original cave. A Pearly Clamclamp also houses the Castaway at the end of the pipe section; in Pikmin 2, the Chocolate Cushion or Confection Hoop are in this spot, out in the open and unguarded.
- Sublevel 3 lacks any Anode Beetles. They are replaced by a single Joustmite. It also lacks the singular Ivory Candypop Bud.
- Sublevel 4 appears to lean more towards a focus on poison as opposed to the original's emphasis on explosive obstacles and enemies. To this end, many of the bomb rocks and Volatile Dweevils have been replaced with poison-themed enemies such as Moldy Dwarf Bulborbs. Notably, there are a handful of Venom Dweevils that hold bomb rocks atop their heads, as a reference to the Volatile Dweevils in the original sublevel.
- All sublevels have safe zones marked by green floors where the Waterwraith can't reach.
- The original music that plays in the Submerged Castle doesn't play, at least at first. A remix of it slowly fades in as the Waterwraith's arrival approaches, slowly taking over the Engulfed Castle's ambient track. It doesn't play at all after the Waterwraith has been defeated, as it no longer appears.
- After the Waterwraith is defeated, the player can unlock the cave's exit above ground, allowing them to enter the cave with other types. The Waterwraith will also never respawn when defeated, allowing one to take their time on return visits, whereas it respawned regardless in Pikmin 2.