And don't forget to shield! xP I hate when people never shield and just walk into jellies thinking they are going to move out the way...

The Graviton Bomb is a pretty good weapon, if you're planning to go bomber.

Grabbing that with a Toxic Vaporizer and maybe an elemental Brandish or Cautery Sword will get you through the Jelly King fairly easily.

Hey Magnus, a question about the weapon.

Is Cautery Sword better than Tempered Caliber for Jelly King? I was pondering it, but I don't know how well the "Damage vs Slime: High" bonus works in practice.

And had enough Jelly gems to make 5 Silversixes.

My Gear for most of those kills
Angelic Armor and Helm (Now Seraphic Armor and Helm)
Owl shield. Yes, the first one in the series. My Mighty Defender is in the shop for maintenance and oil change. (Still Owl Shield, hopefully will turn into an Aegis soon)
Tempered Calibur (Now Winmillion)

My advice:
Before you start the entire run, buy 1 of each:
1 super Poison
1 super Fire
1 super Health Pill

Conserve revives throughout the entire run, here's where party members come in handy. save all the cheap revives for the king. Pick up and save any fire, poison, and curse vials if possible. For the last spot you can either grab health pills or stun vials (Yes, stun vials)

Against the king himself:

Weapons of choice:
Poisonous Sword: Vile Striker. Can constantly inflict poison to save yourself some trouble.
Average Stabbalicious Sword: Calibur Series Using Calibur charged attack is actually fairly effective. I had a level 10 Tempered Calibur, and a charged swing would hit him 3 times for 168 damage a hit. it would also wipe out a few of the little guys around you.
Curse Sword: Faust Series

At the start, hurl one of each vial at him. Poison, fire, and curse if you have it. Then just start whaling away with normal attacks. When he changes color, put up your guard and back off while he goes on his topsy turvy rampage. Once you're out of range, start charging up your attack if you want. When he stops, let him have it. rinse and repeat.

As for the stun vials, why I suggested them is because they have huge knockback for all the little jellies. If you're having trouble getting to or away from the king, pull out one of these and hurl it at point blank. Woosh!

Just be ready to revive. On average you will revive twice. On speed runs expect to revive at least three or four times.

MY last comment was crazy, i got hopped up on sugar (no clue what i was syaing half the time).
The fight is difficult. Thats the point. As far as i know, thats it for the one floor you fight him. A few key points are:
1-he regens health every couplke of seconds
2-he spawns little royals and normals (no stuff sadly, should at least drop health, thats my opinion)
3-poison/teamwork really helps. Since he regens, hes just killing himslef (lucky if you have poison)
the guys a huge pain, but i think this a good way to fight him:
have 1-2 people running around, charging bombs (or swords, your pick. good if they cause poison) while the other 2 fight off the slimes. when you reach the jelly king, slash away. Dodge and repeat.
Believe this makes him stay in the center
Havenet fought him AND won (fought but lost :(....), but he must drop this wicked awesome stuff

I agree that the fight's a bit hard. Just did another run earlier tonight, working on my gun.. and didn't have to waste energy to revive once all the way through the entire run as I had teammates revive me and I'd just be really careful as I fought with 1-2 bars of health, Haha. Lots of blocking involved up to then.. so when I died to the King, it'd only cost 5 then 10. I think I died twice.

But yeah, we used Super Poison/Curse/Fire, and health capsules in the last slot. Went pretty easy. Only 3 Jelly Gems though, so that made me a sad camper.

I just finished doing a bunch of Jelly runs last night to get my Faust, and the strategy that worked best for us was to rotate poison vial tossing so none are wasted while throwing whatever other vials people had whenever Royal Jelly stopped spinning. Fire and curse seem to work best besides poison, like people have said, and he hits himself for 153 damage or so when cursed! Freeze and stun help a bunch if you get swamped by the little jellies, too. With a mix of 3* and 4* gear he goes down quick, you just need to survive the spin attacks and keep him poisoned.

I just 2 man it my friend brings the vile striker i bring the avenger and we just run him over... we usally buy 1 super fire 1 super poison and 1 super curse, and most of the time we never die. We are both wearing Full Tier 4 (ash tail) and i use a mighty defender and he uses a Wise Owlite shield. We dont have much trouble at all. But were over geared xD and i consider myself well timed with my shields.

Using a sentenza against him now works really well.... i recomend it. Also 3 manned with a "good" bomber and went so much faster and more smoothly so i recomend if your 3+ manning make sure you find a good bomber (he was in 3*- 4* gear).

You don't actually NEED a Chroma suit to do the Jelly King, it would just provide a nice little bonus for that strata. Since Chroma is rare, the vast majority of people go down with their usual Helm and Armor. Just stick with your Dusker line and the bonus to your sword fighting will be more than sufficient to beat the king. With four knights going down, it really isn't that hard.

5* recipes are 45,000 Crowns, which can be purchased from Kozma or Basil in Tier 3.

1st time i fought him was me with all 2 star gear, nothing fancy. Static edge (lightning sword), and then the 2star cobalt armors and defender shield. Fortunately i was able to carry my weight (mostly) in getting there by bombing.

Anyhow, i think the key to winning the fight is just making sure to have a plan. When i got there it was me and one other person with good equipment (4stars).

1. I followed directions.
2.We had it planned, he shot the colored block as we stepped on the party button. Then you bum rush the jelly king in his spawn area so that all your vials hit him and not the the slimes. And you start off b/n him and the slimes rather than having to battle through the slimes to throw vials/hit him.
3. There is no reason to not have the necessary vials by the time you've reached the jelly king. You have enough floors that you should have 3 fire, 3 health, 3 poison and some curse. We had it planned. he threw poison, i threw fire. he threw curse.
4. we wacked away at him with swords, avoided his spinning to the best of our ability, when he stopped he threw poison, i threw fire, he threw curse.
Hit him with swords again and won.

I think the biggest thing is to make sure that you are throwing the vials intelligently. And bum rushing him right off the bat. THat way all your 1st vials hit flush on him. I mean, it would have been much worse off had we both thrown poison to start, then both thrown fire, etc.
I think he had the poison sword too which helped. So he may have only thrown the 1st poison and then focused on curse/fire.

Zedoshi, Did you manage to kill him?

I brought a pickup group in, our 4th left us in the Jelly Palace, and we managed to beat the jelly king in all 2* gear (except that I had a 3* sword). As long as you stay on top of the king, have 3x poison vials, 3x super health capsules, and some status effect vials, then he's not difficult. And in 8 tiers, it's easy to conserve pickups to have these items.

I ran it twice today for my first two kills ever. Just check with you group to see if they plan on going all the way. If you're still having trouble finding a group, msg me and I'll run with you tomorrow.

I think you'd be fine, honestly. The first time I went for him was in a group of 3, and all I had was a full Cobalt Set + Defender + Ascended Calibur. However, if you have the money/energy I would HIGHLY suggest a Vile Striker or even a Dread Venom Striker. You don't have to mess around with Poison vials as much due to the chance of poison on hit and the relatively fast hit times.