You generally want to avoid guns with JK. I haven't played around with the new guns (catalyzer and whatnot) but for the most part you want to stick with swords. Autogun won't get you far against all his minions, cutter would work but i'd suggest the calibur. (Cutter is harder to control because of the lunge and at JK there is a lot of focus on positioning so unless you have a lot of experience with JK i'd avoid the cutter) Calibur's charge is also very useful in the beginning to clear away some of the starting mini jellies.

As to general tips, Bigfootm pretty much covered it but there are a few other things you need to watch out for.
-When he starts spinning, either kite away from him or hide behind the corner blocks.
-Shield bumping away the small things to clear a path to JK after he stops spinning is a good idea, but don't get carried away with it
-If you find that your party has teamwiped don't waste time thinking about revival. Either do it quickly or don't at all.
-To go along with the point above, JK has a lot of momentum in terms of the battle. If you find that your teams dps on him has stopped, likely its time to give up and go back.
-If you run out of vials or methods of poisoning/fire/curse. give up
-Before you start the encounter, have someone shoot the ghost blocks to clear all the blocks before stepping on the button. It's a small thing but it's very helpful in establishing a good starting position.

--Cobriliant

Why would you use a shadowtech alchemer?

If you wanna use guns, i suggest something from the shadowtech, antigua line. But even if you have just a tempered calibur, you can easily defeat JK. Once you have all 4* gear, JK is like any other minion. Really simple. For now, i would suggest joining a good group with tier 3 players and then going on JK runs with them.

If you attempt JK with less than 3* sword and 3* armour (3* shield recommended but not exactly necessary), i guarantee you, you cant win. (unless you have a butt-load of energy)

This is my strategy of donts to win against JK:
1) DONT run around the place looking for an opening. By the time you inflict 10 dmg, he would have healed 100. (Jelly King can and WILL sacrifice smaller blobs for his own health.)
2) DONT look at your health bar. keep hitting him. it will take only maybe 3 revives (if you didnt die before JK, thats only 25 energy).
3) DONT take more than 3 people when doing a JK run. If you have all 3* gear, you can solo it. Unless the person joining is good (as in, with 4/5* gear) dont take more than 3. Although it seems like a good idea, it can make JK much more strong and healthy.

About Jelly King.

Jelly king HAS a health bar (sort of). It shows you when his health is lowered and when it is halved.
When he has damage, he starts doing one spin at a time in purple colour and kills smaller blobs for health, if his health is full, he just moves around. When his health is halved, he turns pink and starts spinning like crazy in a clockwise direction. When he does this, DO NOT go near him. (Ok, there is no need for me to say this as everyone knows not to charge at something thats spinning like a warthog on beer pint.) One hit in his pink attack form can take up to 6 bars of health if you dont have the right armour and shield.

Hope this helps.

That is terrible advice DevilXTreme. JK is not worth 5e in revives let alone 25. If you have a 3*+ sword and a brain inside your head you can outdamage him enough without standing there like a t1 idiot. There's a reason everyone takes poison vials or a Vile Striker.

... Well, after reading this thread, I've come to the conclusion that-

I will never attempt to solo JK, seems like a ridiculous waste of time.

The battle is always extremely chaotic (to the point that the rules of strike and engage that you follow to survive everywhere else in SK don't apply), I generally get off a few hundred damage before I die against him and his overwhelming hordes...

One guy says "if you're out of vials, give up", another says "you're okay if you only have to revive 3 times"...

Is there any GOOD way to fight this guy? I know there are ways to win, but are there ways to do well?

With curse vials and a wep that does shadow dmg like night blade or silent night blade it's gg for Jo not you

Necromancir, if I kill you in PvP, then will you stop your advertisements? :P

lolz. so this is where u put the kill pvp thing.
back to JK
Mechaknights can also help. alot. especially is u have 4 people in your party and everyne has three..
4 best vials (in my opinion) for jk: Mecha knight, curse, poison, health. if u r pro enough and u don't need health and can have fire instead.
dont worry, no more ad. just siggy

LORD EXODIUS, SIGNING OFF... FOR NOW

a good weapon combo is
1. tempered calibur to clear out his minions in the beggining.
2. something form the MkII line. i personally think freeze is the best but a lot of people like fire. do NOT under ANY circumstances use shadowtech. it's a waste and doesn't do anything to freeze or burn anything like that.
3. don't rush him at the beggining even if you have 5 star gear. you'll just die because you really think a 1 poison vial 1 curse vial plus a 5* sword is going to kill jk within the first minute?
4. if you're tier 2 try to provide cover fire with guns and vials don't rush jk with all the other tier 3's because you either 1. dont have the right skills and tactics or 2. you don't have the right gear.
5. don't attack him when he's pink he's invincible and he'll just take down half of your health.
that's a few of the things i know. hope they helped. :)

how are u suppoed to get the sealed sword line if u are trying to kill him for the first-7th time? other than buying it in the a.h., i mean. and guns are almost useless fighting the jk.

Ok I got better tactics and sword so this gear recommended?
Full combat but probally Gunna equip my jelly helm with low curse resist and med poison
Tempered caliber but soon getting night blade or fire burst brandish.

There might be a "smart" approach for JK. I haven't tried this yet, but after watching many youtube videos, and after many personal successes and failures on jelly king, I think I've come up with a way to defeat him without dying too much. The first secret is good gear (obviously.) The second is to run in one at a time.

Establish an order in which each player engages jelly king. Probably the best way would be to go by the way player's names are listed on the screen (the leader goes first, then the player listed under the leader, etc.) That way there's less to remember. When it's a player's turn to engage then that player will run in, poison, then whack away at JK. Everyone else will play defense. The next player in line will monitor the player who is currently engaging Jelly King. When the player battling Jelly King is about mid health then it's the next player's turn. A player's turn doesn't end until the next player begins to battle Jelly King. When a player's turn is over then they should back off, heal, then play defensively. When the order reaches the bottom of the list then it will be the leader's turn again.

This way you should be able to keep constant pressure on Jelly King and spread damage evenly through the party. You'll also give each other time to heal. Theoretically this should allow you to beat jelly king without dying too much.

The other option is to zerg rush him and hope he dies first.

--edit--

If you spend the entire battle running around the room while rarely attacking Jelly King then you are not helping your team at all (unless you are constantly cursing him with a faust or grand faust, or waiting for your turn as described above.) This is one battle where you must keep pressure on the enemy or you will lose.

"3. RAMBO don't even defend, attack him like you're dog just died.
3a. Don't worry about losing health
3b. Seriously."

4. Enjoy your death.
4a. Seriously. Been there, those pesky jellies WILL most likely kill you.
:D

Lol I guess I kind of did make it sound like that.
And thanks for clarifying the stratagy.
Sorry I missed it.

Zanoni and Noctuelle, keep your bad advice to yourself :P

Guns = bad
Running around dodging stuff = bad
Attacking minions (except the odd knockback swing from a heavy sword) = bad
Taking turns attacking RJ = very bad
Bombs (other than a shivermist if minions are close together) = terrible

Calibur-line swords = uterly crap (not just relevant to the RJ :P )

^ Read it. ^

FSC is significantly harder than Royal Jelly, and I'm afraid BigFootM is not such an expert at it that a win is guaranteed :P

(sorry BigFoot, but our run yesterday wasn't as successful as it could have been :P )

I believe there are threads for finding an FSC team, generally best to go for the one with the most experience, a Shivermist bomber and a lot of Divine Avengers :D

@swtdrgn yeah, i have two star gear and every time i beat jelly king i've had to use exactly 2 revives