Demonic Gorillas
The prayer-switching exam
Post-Monkey Madness II gorillas that punish sloppy prayer switching. They teach the tick-perfect protection swaps every high-end boss demands, and drop zenyte shards and ballista parts.
At a glance
- Requirement
- Monkey Madness II To start
- Rec. combat
- 90+
- Profit
- 4.4m/hr 70 kills/hr · verified
- Difficulty
- Advanced 380 HP · max 31
- Best style
- Melee / Ranged / Magic
- Chase drops
- Zenyte shard, Heavy frame Why go
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Checking your target…
Should you fight this?
What you get out of Demonic Gorillas, so you can decide if it fits your goals right now.
- The definitive training ground for reactive prayer switching.
- Zenyte shards feed the best amulets and rings in the game.
- Ballista components build the heavy and light ballista.
How to get there
The best ways to reach Crash Site Cavern (Demonic Gorillas) (for Demonic Gorillas) in Ape Atoll. Requirements are checked against your account on the readiness panel above.
Royal seed pod → Grand Tree, run north-east
- 1Use a Royal seed pod to teleport to the base of the Grand Tree.
- 2Through the fence, run north-east into the cavern (fastest option).
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2 alternative routes
Spirit tree → Tree Gnome Stronghold, run NW
- 1Take a spirit tree to the Tree Gnome Stronghold.
- 2Run north, then north-west to the gap in the fence.
Gnome glider → Ta Quir Priw, descend
- 1Take a Gnome glider to Ta Quir Priw atop the Grand Tree.
- 2Descend and run north-west to the fence gap.
Gear setups
Pick the setup that matches your bank. Every upgrade here links back to the Gear hub.
Upgrade paths for this fight
Strategy
- 1
Bring two attack styles
Gorillas adapt to whatever style you use, so you must carry at least two (e.g. ranged + a demonbane melee). Bring prayer restores — you'll flick overheads constantly.
- 2
Learn the flicking
The whole fight is reactive prayer switching. Get comfortable matching one gorilla's overhead before taking on multi-spawns or a task in bulk.
Key mechanics
What can kill you at Demonic Gorillas, and what to do about it. For the full breakdown, see the OSRS Wiki link below.
Adaptive prayer switching
They attack with melee, ranged and magic, switching after three misses — and they adapt to your last-used style once they've taken enough hits, so flick the matching overhead every time.
Boulder special
A rock drops on your tile for 33% of your current HP — step one tile away the moment it launches.
Demon typing
They're demons with a water-spell weakness, so demonbane weapons and water spells hit noticeably harder.
Notable drops
| Item | Rarity | Value |
|---|---|---|
 Zenyte shardUnique | 1/300 | 16.9m |
 Heavy frameUnique | 1/1500 | 357.6k |
 Light frame | 1/750 | 29k |
 Ballista limbs | 1/500 | 28.8k |
 Ballista spring | 1/500 | 28.9k |
Drop probability by KC
For every Demonic Gorillasdrop with a fixed rate, see the chance you’ve received at least one copy by your kill count. Sign in with a linked account to use your live KC.
Enter your KC to see the chance you’ve seen each drop at least once.
| Drop | Rate | Chance by KC |
|---|---|---|
| Zenyte shard Unique | 1/300 | — |
| Heavy frame Unique | 1/1500 | — |
| Light frame | 1/750 | — |
| Ballista limbs | 1/500 | — |
| Ballista spring | 1/500 | — |
These figures are an independent-roll estimate: they treat every kill as a separate roll at the listed rate ( 1 − (1 − p)KC). Real drops can involve guaranteed rolls, point/invocation scaling or completion rewards, so the true odds may differ. A probability is never a guarantee — even far above 90%, the drop is never owed to you. Drops without a fixed 1/Nrate show “—”.
Prerequisite quests
Quests that gate access to Demonic Gorillas, plus the quest chain each one sits behind.
Monkey Madness II
Progression after this boss
Once Demonic Gorillas feels comfortable, these are the natural next steps up in difficulty and payout.
Frequently asked questions
How much gp/hr is Demonic Gorillas in OSRS?
Demonic Gorillas earns approximately 4.4m per hour at around 70 kills/hour, based on the OSRS Wiki money making guide. Rates vary with gear and experience.
What are the requirements for Demonic Gorillas?
Demonic Gorillas requires Monkey Madness II.
What combat level do you need for Demonic Gorillas?
A combat level of 90+ is recommended for Demonic Gorillas.
What combat style is best for Demonic Gorillas?
Demonic Gorillas is best fought with Melee, Ranged and Magic.
How hard is Demonic Gorillas?
Demonic Gorillas is an Advanced-tier boss with 380 hitpoints and a max hit of 31.
What does Demonic Gorillas drop?
Notable drops from Demonic Gorillas include Zenyte shard and Heavy frame.