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{{list of | jellies}}''For the obsolete item, see [[royal jelly (item)]].''
{{monster info|the Royal Jelly}}

==Useful Info==
'''The Royal Jelly''' (or '''TRJ''') is the [[list of jellies|jelly]] boss of [[the Slime Pits]], located on Slime:5. It has an impressive amount of [[HP]], powerful [[acid]]ic melee attacks, exceptional speed, and an unusual defense mechanism: whenever it's damaged, it spawns various powerful jelly-type monsters to attack you ([[azure jellies]], [[void ooze]]s, [[rockslime]]s, [[star jelly|star jellies]], and [[acid blob]]s). These monsters don't count as [[summon]]s, and won't disappear on TRJ's death, but aren't worth XP.

TRJ has special AI: unlike most other monsters, it can choose to actively retreat behind created jellies.

Killing the Royal Jelly causes the following to happen:
*The upstairs from Slime:2-5 become usable.
*The translucent walls of the four central [[vault]]s that the Royal Jelly guarded will come crumbling down, allowing you access to the [[rune of Zot|slimy rune of Zot]] and the piles of treasure.
*[[Jiyva]], the god of slimes, immediately ceases to exist, unless you are currently under [[penance]] (where Jiyva disappears after penance ends).

==Strategy==
The Royal Jelly is a formidable foe. Trying to run at it with an [[axe]] will likely lead to your death, even with rCorr, as you'll be quickly surrounded by 8 high-level jellies. [[Void ooze]]s are an especially big threat: they can prevent the use of scrolls, god abilities, and spells, and are faster than a [[haste]]d player.

Many strategies exist to take on TRJ. No matter what you're doing, it is recommended to have corrosion resistance, a healthy supply of [[scroll of teleport|teleport scrolls]], and use all sorts of buffs ([[haste]], [[might]], [[brilliance]]...). It is also recommended to clear Slime:4 and as much of Slime:5 as possible. These not only increase your chance of winning, but also help you if something goes terribly wrong.

*'''Corridor fighting'''. Fighting a group of monsters in a corridor is usually a good idea, and TRJ isn't any different. The corridors available might not be perfect, but they can allow you to fight 2-3 slimes at a time instead of 8 - a big improvement from just fighting in the open. ''Not all Slime:5 layouts have good corridors to use, though, so this should not be relied as your only strategy.''
**By using [[summon]]s ([[scroll of summoning]], [[phantom mirror]], [[Summoning|spells]]...) in the corridor, you can prevent TRJ's reinforcements from attacking you, turning it into a fight in your favor. Summons can also prevent TRJ from retreating. Melee, ranged weapons, and single-target spells (like [[Bombard]]) all work well in this position. See the [[#Gallery|Gallery]] section for a demonstration.
**Try not to rely on walls that'll fall apart once TRJ dies, or you'll be surrounded quickly upon its defeat.

*'''[[Scroll of immolation|Immolation]] + Piercing/AOE attacks'''. Because TRJ spawns monsters around itself, a [[scroll of immolation]] tends to be brutally effective. Damage TRJ with a ranged attack, causing it to spit jellies, then read immolation, and blast it with strong piercing/AOE attacks. [[Fire Storm]] and [[Chain Lightning]] will work as you'd expect, but mid-level spells like [[Plasma Beam]] can work too. Some less conventional options include:
**[[Discord]]. Turn spawned jellies hostile to each other. Spawn jellies, use Discord, immolate, and you win.
**[[Eringya's Noxious Bog]]. The poison triggers immolation's flame cloud each turn, meaning it can take out TRJ despite its poison resistance. Haste up, create a bog, and [[kiting|kite]] TRJ. Once enough jellies have spawned, use immolation, which will eventually trigger an explosion. [[Ignite Poison]] makes the process faster and safer, but it's not mandatory.
**[[Fulsome Fusillade]]. TRJ thoughtfully creates targets near itself for those great overlapping explosion effects. Remember you can back away while channelling it.
**Many [[god]] abilities can kill TRJ with high [[Invocations]] skill. [[Qazlal]]'s Disaster Area and [[Nemelex]]'s Deck of Destruction (with immolation) are some ways to deal with TRJ.
**For melee characters, throwing [[javelin]]s at high skill can be used to the same effect. TRJ is vulnerable to [[silver]], so silver javelins are especially effective. Throw until you create a couple slimes, use immolation, then throw to activate the fireworks.

*'''Snakebombing (Immolation + Summons)'''. Your [[allies]] can also be affected by immolation. Create a swarm of allies, and regardless of whether your allies or TRJ's slimes win, everything will explode at the end. [[Kiku]]'s Wretches are great for this, although note that [[Death Channel]] spectres cannot be immolated.

* '''Torment''' is extremely effective, especially when combined with the immolation + ranged attack strategy above, but equally as risky unless you're immune. The [[undead]] ([[Revenant]]s, [[Poltergeist]]s, [[Mummies]]) can use torment with impunity. A [[potion of lignification]] can grant the other species torment immunity, although it also prevents movement or teleportation.

*'''Blasting it from range.''' High damage piercing/AOE spells can flat out kill TRJ if lacking immolation scrolls (although haste & other buffs are still highly recommended). The following spells are so effective that immolation is superfluous:
**[[Ignition]] turns the fight into a cakewalk. Hit TRJ once with a strong attack or torment, then, since jellies always spawn near TRJ, cast Ignition to hurt TRJ with 9 explosions. No immolation required.
**[[Maxwell's Capacitive Coupling]] doesn't have AOE, but instantly kills any monster, TRJ included. It is recommended to stay in a corridor or on an upstair if possible.
**[[Beogh]]'s Smites are a piety-expensive, but effective way to kill TRJ, assuming you have lots of Invocations skill.

*'''[[Scroll of vulnerability]] or [[Guile]]'''. Against 180 willpower, Hexes are not very effective. Using vulnerability cuts that in half, making it reasonable for repeated hexes or hex wands to get through. Be ''very'' careful; since vulnerability also cuts your will in half, [[golden eye]]s and [[great orbs of eyes]] can inflict nasty statuses.
**Standard high-tier stab hexes ([[paralysis]], [[Petrify]]) work. These are best used in a corridor, since slimes still spawn when TRJ is disabled.
**[[Polymorph]] turns TRJ into something else. You usually get a [[shard shrike]], [[titan]], [[dragon]] or, if especially lucky, a [[death yak]]. This creates a mass of jellies still, but once you deal with them, no more will spawn from the polymorphed TRJ.

*'''Stealth stabbing''' is ''technically'' possible, but isn't advisable. There's always a chance to wake TRJ early, and even if you do get a stab, you might fail to one-shot, making you face TRJ with a huge mass of slimes. Even if you do kill, you'll still have to deal with the leftovers.

*'''[[Jiyva]]'''. Of course, if you wish to avoid this entire mess, you can simply worship Jiyva and waltz in at 6* of piety. Most of the treasure will inevitably get eaten, but you'll at least be able to make off with the rune and whatever [[artefact]]s were present. As per usual with Jiyva, [[Apportation]] may come in handy.

===Escaping===
*Take great care around [[void ooze]]s. They can [[engulf]] you, rendering unable to use [[spell]]s, [[scroll]]s, or [[god]] abilities until you move a tile or kill the ooze. Being surrounded by 8 jellies is already deadly, being unable to [[blink]] or [[teleport]] out makes it even worse.
**[[Amphibious]] and [[unbreathing]] characters are immune to engulf.
*Haste can let you run away from most jellies if you are not already in melee range. Only void oozes are outright faster than a hasted Human, though TRJ is only slightly slower than that. Both haste and [[Swiftness]] can be used to outrun these two.

===Tips & Tricks===
*TRJ retreats behind its spawned jellies periodically. Use piercing, AOE, or smite-targeted attacks that can hit TRJ past its reinforcements. Otherwise, you'll need to fight through or reset the fight.
*If planning on killing TRJ from afar, it may be helpful to stay on an upstair. That way, if you kill TRJ yet are still surrounded, you can [[stair dance]] up, deal with the current crowd, then go down a different stair.

==Gallery==
<gallery widths="500px" heights="500px" class="left" mode="nolines">
TRJ Melee.png|Fighting TRJ in the original "slime_pit" vault with melee/single-target spells.<br>Get TRJ in the corner (while [[haste]]d), position yourself as shown, then create [[summon]]s to prevent jellies from hitting you and to prevent TRJ from escaping.
TRJ Melee jellycorners.png|Some layouts, such as "jellycorners", have obscure and/or bad corridors.<br>A [[wand of digging]] had to be used to open up the corridor. Also, this area is worse than the other example. Since jellies can spawn within 2 tiles of TRJ, summons won't adequately block jelly spawns here.
</gallery>

==History==
*Prior to [[0.34]]:
**Slime did not prevent the use of upstairs before TRJ was killed, thus making the fight safer and more reliable. It also allowed players who could break stone walls ([[Fedhas]] Overgrowth, [[Lugonu]] Corruption, [[Shatter]]) to break into the rune vault without facing TRJ directly.
**TRJ could be [[banish]]ed, preventing the Slime:5 vault from opening unless you went to the Abyss and kill it.
**TRJ could not spawn [[star jelly|star jellies]].
*Prior to [[0.33]], the [[amorphous]] tag did not exist (this had no functional change for TRJ).
*Prior to [[0.31]], TRJ wasn't immune to [[throwing net]]s. Also, there was only one Slime:5 vault, making the fight more consistent.
*Prior to [[0.27]], [[death ooze]]s were created, instead of [[quicksilver ooze]]s and [[rockslime]]s.
*Prior to [[0.23]], exploding the Royal Jelly with [[Uskayaw]]'s Grand Finale didn't generate any jellies.
*Prior to [[0.19]], the Royal Jelly could eat items and could heal itself when shot with anything other than stones.
*Prior to [[0.16]], the Royal Jelly did not immediately spit out a large number of jellies when polymorphed, making it a viable combat strategy.
*Prior to [[0.15]], hitting the Royal Jelly could generate [[brown ooze]]s as well.
*Prior to [[0.11]], the Royal Jelly was not able to regenerate naturally. This made the fight much easier to complete over several small assaults.

The Royal Jelly - Revision history

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