# The Root Hydra

> The Root Hydra, Stump, is boss 19 of 21 in tibo.dog. Its middle head falls. Mud Golems crawl out of the ground.

Source page: https://www.tibodog.wiki/bosses/root-hydra-stump · Wiki updated 6 Nov 2026, 03:55 UTC · Game version 75 (`main-CSuyb4iv.js`, data synced 5 Nov 2026, 21:45 UTC)

Breadcrumb: [Main page](/) › [Bosses](/bosses)

| The Root Hydra | |
|---|---|
| Title | Stump |
| Order | 19 of 21 |
| Base HP | 900000 |
| Contact damage | 32 |
| Speed | 22 |
| Main attack | `summon` every 7 s |
| Telegraph | 1.2 s |
| Bullet patterns | 2, every 3 s |
| XP | 600 |

**The Root Hydra**, *Stump*, is a boss in tibo.dog. In-game description: “Its middle head falls. Mud Golems crawl out of the ground.”

## Endgame encounter

This definition belongs to the [endgame phases](/endgame), not the ordinary minute-by-minute boss schedule. Root Hydra head, mire, frenzy and stump entries are encounter parts/forms. The raw attack and HP definitions below do not include family-specific rules or protection.

## Main attack

| Parameter | Value |
|---|---|
| `kind` | summon |
| `count` | 2 |
| `ringRadius` | 80 |
| `minion` | mud-golem |

Summons [Mud Golem](/enemies/mud-golem).

## Bullet patterns

| Pattern | Count | Bursts | Bullet damage | Speed | Telegraph (s) | Extra |
|---|---|---|---|---|---|---|
| `spiral` | 4 | 8 | 8 | 55 | 0.9 | spin 1.4 |
| `ring` | 18 | 2 | 8 | 75 | 0.9 |  |

## Names in other languages

**Verified**: the name the game shows when another language is selected in Settings, from its translation files. [i18n-ja-content-DO6GrqHt.js: `"content.boss.root-hydra-stump.name":["根のヒドラ"]`] See [Languages](/controls#languages).

<details class="raw"><summary>Show names in 26 languages</summary>

| Language | Code | Name | Title |
|---|---|---|---|
| 简体中文 · Simplified Chinese | `zh-CN` | 根须九头蛇 | 残桩 |
| 繁體中文 · Traditional Chinese (Taiwan) | `zh-TW` | 根鬚九頭蛇 | 殘樁 |
| 日本語 · Japanese | `ja` | 根のヒドラ | 切り株 |
| 한국어 · Korean | `ko` | 뿌리 히드라 | 그루터기 |
| Español · Spanish | `es` | La hidra de raíces | Tocón |
| हिन्दी · Hindi | `hi` | जड़ हाइड्रा | ठूंठ |
| Deutsch · German | `de` | Die Wurzelhydra | Stumpf |
| Français · French | `fr` | L’hydre des racines | Souche |
| Português (Brasil) · Brazilian Portuguese | `pt` | A Hidra de raízes | Toco |
| Türkçe · Turkish | `tr` | Kök Hidrası | Kütük |
| Bahasa Indonesia · Indonesian | `id` | Hidra Akar | Tunggul |
| Русский · Russian | `ru` | Корневая гидра | Пень |
| Bahasa Melayu · Malay | `ms` | Sang Hidra Akar | Tunggul |
| Filipino | `fil` | Hydra ng Ugat | Ang Tuod |
| मराठी · Marathi | `mr` | मुळांचा हायड्रा | बुंधा |
| Tiếng Việt · Vietnamese | `vi` | Hydra Rễ Cây | Gốc Cụt |
| తెలుగు · Telugu | `te` | వేరు హైడ్రా | మోడు |
| தமிழ் · Tamil | `ta` | வேர் ஹைட்ரா | அடிமரம் |
| বাংলা · Bengali | `bn` | শিকড় হাইড্রা | গুঁড়ি |
| ไทย · Thai | `th` | ไฮดรารากไม้ | ตอไม้ |
| Hausa | `ha` | Dodon Saiwa | Kututture |
| Naijá · Nigerian Pidgin | `pcm` | Di Root Hydra | Stump |
| <bdi>العربية</bdi> · Arabic | `ar` | <bdi>هيدرا الجذور</bdi> | <bdi>الجذع</bdi> |
| <bdi>فارسی</bdi> · Persian | `fa` | <bdi>هیدرای ریشه</bdi> | <bdi>کنده</bdi> |
| <bdi>עברית</bdi> · Hebrew | `he` | <bdi>הידרת השורשים</bdi> | <bdi>גדם</bdi> |
| <bdi>اردو</bdi> · Urdu | `ur` | <bdi>جڑوں والا ہائیڈرا</bdi> | <bdi>ٹھنٹھ</bdi> |

</details>

## Data

```json
{
  "id": "root-hydra-stump",
  "hp": 900000,
  "damage": 32,
  "radius": 22,
  "xp": 600,
  "speed": 22,
  "attackEvery": 7,
  "telegraph": 1.2,
  "attack": {
    "kind": "summon",
    "count": 2,
    "ringRadius": 80,
    "minion": "mud-golem"
  },
  "patternEvery": 3,
  "patterns": [
    {
      "kind": "spiral",
      "count": 4,
      "spin": 1.4,
      "speed": 55,
      "radius": 3,
      "damage": 8,
      "bursts": 8,
      "interval": 0.18,
      "telegraph": 0.9
    },
    {
      "kind": "ring",
      "count": 18,
      "speed": 75,
      "radius": 3,
      "damage": 8,
      "bursts": 2,
      "interval": 0.5,
      "telegraph": 0.9
    }
  ]
}
```

## Sources

Game version 75: `main-CSuyb4iv.js` / `boot-CPW8VVmR.js` / `sim-BkfBhQfw.js` from https://tibo.dog/, researched 2026-11-05. See [Versions & updates](/versions).
- Content registry exported by `boot-CPW8VVmR.js`; boss definitions and order exported by `sim-BkfBhQfw.js`; lazy endgame definitions from `endgame-content-CyuS5vbP.js` and `catalog.generated-JnyrtBzy.js`
- English names and descriptions from `i18n-en-content--0ALgcKX.js`
- Game config `bosses.hpSteps` and `win.finalBoss` from `sim-BkfBhQfw.js`
- Names in other languages from the 26 `i18n-<code>-content` files of `main-CSuyb4iv.js` (`data/i18n-names.json`)