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Caustic Dweevil

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Caustic Dweevil In-game icon.
Caustic Dweevil.png
Appears in Pikmin 2
Scientific name Mandarachnia sulfurnid
Family Dweevil
Areas None
Caves Frontier Cavern, Hole of Heroes, Dream Den
Challenge Mode levels Dweevil Nest, Hazard Training
2-Player Battle levels None
Attacks Sprays water

The Caustic Dweevil (ルリショイグモ?, lit.: "Lapis Lazuli Carrying Spider") is a member of the Dweevil family, a non-aggressive enemy found in Pikmin 2 that attacks in self-defense. As is typical of Dweevils, it picks up any treasure or enemy corpse it can find, only releasing it when Pikmin attack. The only offensive measure the beast can take is spraying an acidic bodily fluid that functions identically to water, meaning it chokes and drowns all Pikmin types except blue ones and Bulbmin, making those the best choice in battle against it.


Weight Max.
Seeds Value Health Regen.
3 6 5[note 1] Poko icon.png × 2 150 No
  1. ^ This enemy cannot be delivered to Onions in-game. This information is obtained from the game files.


Olimar's notes

The caustic dweevil is one member of an insect family known for mimicking objects by carrying them on their backs. Several points of differentiation with other members of the species have been confirmed, such as body color and behavioral patterns, but none of these suggest major deviations in the creature's genetic structure. This makes it clear that it is a relative of the family. When attacked by enemies, the caustic dweevil spits out bodily fluids in response. Space suits corrode and oxidize when they come in contact with this highly acidic liquid.

Louie's notes

Inedible. Effects of consumption include uncontrollable arm flailing and enthusiastic dishwashing.


Caustic Dweevils scurry about randomly and take no note of the presence of any leader or Pikmin if left undisturbed. When provoked one will attempt to defend itself by releasing a pressurized spurt of water below it. Caustic Dweevils are frail creatures and will die quickly if attacked by even a few Pikmin, or by the punches from a leader.

When a treasure or a corpse of another creature is nearby, a Caustic Dweevil will lift it up onto its head and carry it, making it impossible for Pikmin to collect until it is broken free. When a Dweevil has an item in its possession, it will stay at rest, crouching down, appearing as if it is only the item, until it is approached by a leader or Pikmin, at which point it will stand up and run away.


The following article or section contains guides.
The strategies presented may not be the only ones or the best ones.

Throw any type of Pikmin onto a Caustic Dweevil's small head. Although they can harm non-Blue Pikmin, they are weak and often die before getting a chance to attack at all, and this does not kill Pikmin instantly, allowing them to be whistled to safety by a leader if they do come into contact with the attack. Be aware, however, that depletion of a Dweevil's HP will not stop an oncoming attack, so if one starts its attack animation, be prepared to whistle your Pikmin back. Purple Pikmin are particularly useful in defeating large numbers of smaller Dweevils with ease, since they stun when thrown, halting any enemy attacks, usually until death.

Alternatively, you can use leaders to defeat the creature in an ultimately safer way. Run up to it and punch it until it begins its attacking animation, leaving plenty of time to run away before it attacks. Run back and continue the assault when the acid stops.

Technical information[edit]

Pikmin 2 technical information (?)
Internal name waterotakara
Global properties (List)
ID Japanese comment Property Value
s000 friction(not used) Friction 0.5
s001 wallReflection Unknown (wall bounce speed multiplier?) 0.5
s002 faceDirAdjust Unknown 0.25
s003 accel Acceleration 0.1
s004 bounceFactor Unknown (bounce when it hits the ground?) 0.3
fp00 ライフ HP 150
fp01 マップとの当り Unknown (related to slopes) 30
fp02 ダメージスケールXZ Horizontal damage scale 0.1
fp03 ダメージスケールY Vertical damage scale 0.1
fp04 ダメージフレーム Damage scale duration 0.5
fp05 質量 Unknown (weight?) 0.01
fp06 速度 Move speed 80
fp08 回転速度率 Rotation acceleration 0.25
fp09 テリトリー Territory radius 200
fp10 ホーム範囲 "Home" radius 75
fp11 プライベート距離 "Private" radius 70
fp12 視界距離 Sight radius 200
fp13 視界角度 FOV 180
fp14 探索距離 Unknown (exploration radius?) 300
fp15 探索角度 Unknown (exploration angle?) 90
fp16 振り払い率 Successful shake rate 1
fp17 振り払い力 Shake knockback 250
fp18 振り払いダメージ Shake damage 1
fp19 振り払い範囲 Shake range 25
fp20 攻撃可能範囲 Unknown (shock attack max range?) 25
fp21 攻撃可能角度 Unknown (shock attack max angle?) 25
fp22 攻撃ヒット範囲 Unknown (attack hit range?) 60
fp23 攻撃ヒット角度 Unknown (attack hit angle?) 0
fp24 攻撃力 Attack damage 0
fp25 視界高 Unknown (height visibility?) 50
fp26 探索高 Unknown (exploration height?) 50
fp27 ライフの高さ HP wheel height 75
fp28 回転最大速度 Rotation speed 4
fp29 警戒時間 Unknown (warning time?) 15
fp30 警戒ライフ Unknown 50
fp31 ライフ回復率 Regeneration rate 0
fp32 LOD半径 Off-camera radius 50
fp33 マップとのあたりポリゴンの選定 Collision processing radius 25
fp34 ピクミンとのあたり Pikmin damage radius 5
fp35 石化時間 Petrification duration 1
fp36 ヒップドロップダメージ Purple Pikmin drop damage 50
fp37 地震気絶確立 Purple Pikmin stun chance 1 (100%)
fp38 地震気絶時間 Purple Pikmin stun time 5
ip01 振り払い打撃A Shake mode 1 – hit count 6
ip02 振り払い張付1 Shake mode 1 – Pikmin requirement 5
ip03 振り払い打撃B Shake mode 2 – hit count 12
ip04 振り払い張付2 Shake mode 2 – Pikmin requirement 10
ip05 振り払い打撃C Shake mode 3 – hit count 17
ip06 振り払い張付3 Shake mode 3 – Pikmin requirement 20
ip07 振り払い打撃D Shake mode 4 – hit count 22
Specific properties
ID Japanese comment Property Value
fp01 オタカラライフ Unknown (damage until treasure is knocked off?) 80
fp10 ノーマルアタック Unknown 1
fp11 オタカラアタック Unknown 1.25
fp21 オタカラキャッチ Unknown 2.5

Other information[edit]

  • Size: Leg span: 54mm, as per the e-card
  • Pikmin 2 Piklopedia number: #39


See more: Dweevil family#Naming.
  • Common name: Caustic Dweevil. Something that is caustic can corrode living tissue, like acid. The Caustic Dweevil attacks with a water-like acidic liquid, as pointed out by Olimar's notes.
  • Japanese nickname: ルリショイグモ?, lit.: "Lapis Lazuli Carrying Spider". Lapis lazuli is a blue stone.
  • Japanese name: セオイカナエグモ?, lit.: "Carrying Ding Spider". It is shared with the Fiery, Anode, Munge and Volatile Dweevils.
  • Scientific name: Mandarachnia sulfurnid. It uses the word sulfurnid, referring to sulfuric acid.
  • Internal names: Internally, it is called waterotakara, a combination of "water" and "otakara" ("treasure").
  • Prerelease: Caustic Dweevils were initially called Acidic Dweevils, according to the early English script left unused inside Pikmin 2's files.[1]

Names in other languages[edit]

Language Name Meaning
Flag of Japan Japanese ルリショイグモ?
Ruri Shoi Gumo
Lapis Lazuli Carrying Spider
Flag of France French Araknéak Caustique Caustic Dweevil
Flag of Italy Italian Opiliode caustico Caustic Dweevil
Flag of Mexico Spanish (NoA) Caustiaraña Portmanteau of "caustico" (caustic) and "araña" (spider)



See also[edit]


  1. ^ Pikmin 2/Early English Script on The Cutting Room Floor

Icon of a white flower in the Challenge Mode of Pikmin 2. It represents a course that is beaten, but with Pikmin who were lost.

This article was a featured article from January 26th to May 6th, 2009.

Icon of a white flower in the Challenge Mode of Pikmin 2. It represents a course that is beaten, but with Pikmin who were lost.