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Demonic gorilla: how to defeat it (Ironman guide)

After Monkey Madness II, in the Crash Site Cavern. They use all 3 styles (up to 30) and switch after 3 missed hits; they pray against your style and swap prayer after 70 damage. You need 2 styles (melee + ranged) and fast prayers.

⚔ Open in the interactive guide

Demonic gorilla

Demonic gorilla
Tier
Mid
Combat level
275
Style
Mixed
Requirements
Monkey Madness II. Prayer and style switching
Why kill it as an Ironman
Zenyte shards -> Anguish, Torture, Tormented bracelet, Suffering. Ballista. BIS jewellery.
Loot
The live drop table (wiki rates) and the drop simulator are in the app. ⚔ Open in the interactive guide

Mechanics: what hits you and what to pray

After Monkey Madness II, in the Crash Site Cavern. They use all 3 styles (up to 30) and switch after 3 missed hits; they pray against your style and swap prayer after 70 damage. You need 2 styles (melee + ranged) and fast prayers.

Left icon: what hits you. Right icon: what to pray.

⚠→🔄
Style switch
Magic, melee or ranged (up to 30). It switches after 3 hits of 0 (screams Rhaaaaaaa!). Count the zeros and pray the 3rd correctly so it switches predictably.
⚠→🚫
Boulder
Only on ranged or magic: a boulder drops on your tile (33% of your HP). Move 1 tile. Doesn't count as a miss.
⚠→🚫
Its prayer
It changes its Protect after 4+ hits and 70 unprotected damage. When it swaps you leave combat: switch gear and click again.
⚠→🔄
Predicting
After melee: magic or ranged (prioritise Protect from Magic). After magic or ranged: step away 1 tile; if it follows, melee; if it stays, the other style.

Step by step

  1. Royal seed pod to the Grand Tree, north-west through the fence and north-east into the cavern. Avoid the multi area solo.
  2. Start with Protect from Magic and melee (Arclight). Count the 0s; on the 3rd pray the next style.
  3. When it prays Melee, swap to ranged (blowpipe or atlatl) and click again. Only body, weapon and amulet switches.
  4. Move 1 tile off each boulder. F-keys for prayers and inventory.
  5. Heal with SGS or blowpipe spec; Demonic Offering with the ashes. Pick up Zenyte shards.

Key gear

ArclightArclightToxic blowpipeToxic blowpipeSlayer helmet (i)Slayer helmet (i)Mixed hide topMixed hide topVerac's plateskirtVerac's plateskirtDragon defenderDragon defenderAva's assemblerAva's assembler

Typical inventory

Super combat potion(4)
Ranging potion(4)
Super restore(4)6
Anglerfish4
Shark8
Royal seed pod
Ash sanctifier

Super combat potion(4) · Ranging potion(4) · Super restore(4) x6 · Anglerfish x4 · Shark x8 · Royal seed pod · Ash sanctifier

Ironman tips

  • 💡 Arclight (Shadow of the Storm) is among the best here (demons); Emberlight is the upgrade. Slayer helm (i) on a black demon or monkey task.
  • 💡 Few switches: gloves, boots and ring aren't worth it. The Eclipse atlatl scales with melee strength and needs the fewest switches.
  • 💡 Multi-hit specs (claws, DDS) get nulled if it swaps prayer between hits: use them right after it stops praying melee.

Guide summarised from the OSRS Wiki strategies (CC BY-NC-SA 3.0). Icons and images: OSRS Wiki. In the app: live drop table, drop simulator, map and Set builder with this boss as target.

Other bosses

Early

Mid

Late

Endgame