Bubbulfrog Guide — Bubbul Gems & Koltin Rewards

Bubblfrogs are glowing blue frogs hiding in caves throughout Hyrule. Each one drops a Bubbul Gem when defeated — and Koltin, an NPC collector, trades increasingly rare rewards for your gem collection. This guide covers finding Bubblfrogs and maximizing your gem-to-reward efficiency.

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What Is a Bubbulfrog?

A Bubbulfrog is a glowing blue frog-like creature that clings to cave ceilings and walls. They appear in virtually every cave in Hyrule — one per cave, always hidden on a ceiling or upper surface. They flee when approached, so you need to shoot them with an arrow before they escape.

Key facts:

• One Bubbulfrog per cave location (most caves)
• Defeating one gives 1 Bubbul Gem permanently
• Bubblfrogs do not respawn after Blood Moon — each is a one-time collectible
• Total Bubblfrogs in the game: approximately 147

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How to Find Bubblfrogs

Detection Methods:

1. Listen: Bubblfrogs make a distinctive bubble-popping sound. Enter a cave and stand still — the sound leads you toward the ceiling area where it's hiding.
2. Look for glow: They emit a faint blue glow. In dark caves, sweep the ceiling with your camera.
3. Brightbloom Seeds: Throw a Brightbloom Seed or Giant Brightbloom to illuminate cave ceilings quickly.
4. Ascend shortcut: Some Bubblfrogs are high on ceilings — use Ascend to pop through a nearby ceiling rock to appear above and drop down near it.

Shooting Tips:

• Approach slowly — Bubblfrogs flee at ~15 meters range
• ZL + arrow aim — use slow-motion aim while jumping to get a cleaner shot at ceiling targets
• Arrow type doesn't matter — any arrow kills instantly
• If it starts fleeing (hopping around ceiling), it has a 5-second escape window before it warps away
• Miss: If a Bubbulfrog escapes, exit the cave and re-enter — it reappears

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Cave Locations With Bubblfrogs

Every named cave on the surface map contains a Bubbulfrog. High-density cave regions:

Central Hyrule:

• Hyrule Castle moat caves (3–4 caves, each with one)
• Eldin Cave, Jura Grasslands Cave

Eldin / Death Mountain:

• Goronbi Lake Cave, Maw of Death Mountain, Goro Cove

Akkala:

• East Akkala Plains Cave, Akkala Citadel Ruins caves

Lanayru / Zora:

• Lanayru Cave, Upland Zorana Cave, Zora Highlands caves

Necluda:

• Rabella Wetlands Cave, Cape Cales caves

Faron:

• Rabella Wetlands area, Lake Floria caves

Gerudo:

• Koukot Plateau Cave, Gerudo Canyon caves, Kara Kara Bazaar cave

Hebra / Tabantha:

• Snowfield Stable Cave, Rospro Pass Cave, Corvash Canyon

Sky Islands:

• Several sky island caves also contain Bubblfrogs

Depths:

• Select Depths caves contain Bubblfrogs as well

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Koltin — The Gem Trader

Who is Koltin? Koltin is an NPC who desperately wants to "become a Bubbulfrog." He appears in two locations:

1. First meeting: Near Woodland Stable, north of Hyrule Castle — he's there with his brother Kilton at night
2. Subsequent encounters: After talking to him, Koltin moves to a new location each time you trade with him. A purple glow marks his new spot on the map

Finding Koltin: After your first trade, Kilton (his brother) tells you roughly where Koltin went. Look for the purple sparkle at night. He moves through ~10 different locations around Hyrule.

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Koltin's Reward List (in order)

Trade Bubbul Gems to unlock rewards in sequence — you must claim each reward before the next unlocks:

| Gems Required | Reward | |:-------------:|--------| | 1 | Bokoblin Mask | | 2 | Lizalfos Mask | | 3 | Moblin Mask | | 4 | Lynel Mask | | 5 | Horriblin Mask | | 6 | Like Like Stone | | 7 | Gloom Hands Mask | | 8 | Zonaite Helm | | 10 | Zonaite Chestplate | | 12 | Zonaite Greaves | | 15 | Majora's Mask | | 20 | Phantom Armor | | 30 | Phantom Ganon Skull | | 40 | Phantom Ganon Armor | | 50 | Phantom Ganon Greaves | | 65 | Evil Spirit Armor | | 80 | Evil Spirit Greaves | | 99 | Evil Spirit Helm |

Note: Exact gem counts may shift — the sequence above reflects community-documented thresholds.

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Best Rewards — Priority Guide

Top Tier (Farm For These)

Majora's Mask (15 gems) — Makes enemies ignore Link briefly. Particularly useful for infiltrating enemy camps or sneaking through areas without fighting. One of the most practically useful masks.

Phantom Armor Set (20/30/40/50 gems) — The Phantom Armor chest piece alone gives +25 attack power. Stacking the full set provides exceptional offense for mid-game. Not the best defense, but the attack bonus is significant.

Zonaite Armor Set (8/10/12 gems) — Reduces Zonai device energy consumption when worn. Directly extends Zonai vehicle battery life. Essential for heavy Zonai build players.

Evil Spirit Armor Set (65/80/99 gems) — End-reward set with strong stats and spooky aesthetic. The full set is the capstone of the Bubbulfrog hunting side content.

Mid Tier

Monster Masks (1–7 gems) — Each mask makes that monster type ignore Link (Bokoblins ignore Bokoblin Mask wearer, etc.). The Lynel Mask is the most valuable — approach Lynels without triggering combat.

Like Like Stone (6 gems) — A material needed for specific armor upgrades. Only obtainable here and as a drop from Like Like enemies.

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Efficient Bubbulfrog Route Tips

1. Activate cave icons on map first — Open map and navigate to cave icons to plan routes by region. Clear all caves in one region before moving to the next.

2. Night hunting (optional) — Bubblfrogs don't change behavior at night, but night travel lets you find Koltin for trading simultaneously.

3. Use Brightbloom Seeds — Keep 10–15 in your quick menu. Throw one into a cave immediately on entry to illuminate the ceiling and spot the Bubbulfrog fast.

4. Check Depths caves — Easy to miss, but some Depths caves have Bubblfrogs too. Mark them as you discover Depths lightroots.

5. Milestones matter more than totals — Priority: get to 15 gems (Majora's Mask), then 20/30/40/50 (Phantom Armor set), then push to 65/80/99 (Evil Spirit set) if you want the full collection.

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Tracking Your Progress

The Adventure Log doesn't track Bubbulfrogs specifically, but:

• Koltin tells you how many gems you've traded with him
• The game tracks "Caves Discovered" in the Adventure Log → explore all named caves = all Bubblfrogs accessible
• Community maps (TotK interactive) have all 147 Bubbulfrog locations marked

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See also: Depths Survival Guide | Korok Seeds Guide | Getting Started