Jellyfish king

[Pelar]

There are so many things in Aquaria that they don't explain to you. ._.

Which is good for some people, bad for others. I love exploration and hate hand-holding, so it works out pretty well for me.

Experimentation with game mechanics is fun!

I didn't mess around with fish-form too much the first run, I'll have to try out the poison food.

[Lady-Succubus]

I'll have to try out the bubbles. ._.

[doc]

You get the recipe for swamp cake somewhere in Mithalas, I think. Or maybe it was somewhere high in the kelp forest. I used it effectively twice (other time was the Mithalas priests), but it's great for bosses (or anything where you need to swim around the same general area), especially the jelly fish king, since the poison lingers around and kills any new fish. I'm not sure if it damaged the king himself as well.

[Lady-Succubus]

I tried shooting bubbles at enemies and it didn't work. Am I doing something wrong?

[Alphasoldier]

Not every enemy can be bubbled, if you had poison on, I'm not sure what to do then.

[blackchimes]

I think people are having a lot of trouble with this boss simply because they're trying to hit the core when it's spinnig, which is something I believe you weren't supposed to be doing. First time around I tried to focus on the core myself and was completely dominated; but as soon as I discovered I could eat the red jellyfish everything clicked together and I beat him on my first try with this tactic - using no food at all, no Li and with Dumbo Octopus pet, which is like not having pet at all.

00 Energy Form. Shoot the core.
01 Core starts spinning. Switch to Beast Form.
02 Lasers appear. Move around the core along with them, eating the red jellyfish.
03 Lasers disappear, core should be stationary at this point, most if not all red jellyfish are dead.
04 GOTO 00

Piece of Sea Cake. As an additional bonus, eating tons of red jellyfish(and you will eat tons of them) replenishes your health.

[windigo]

I had a ton of trouble with this boss as well, which tends to send me searching through my inventory for interesting things to eat.

There's one item that stood out, and made quick work of the Jellyfish King once I figured out what it did; Spicy Soup, that gives you the mysterious ability of "Beast Shot".

On a hunch, I tried it out, and blam - beast shot gives you a sort of energy shot while you're in beast form! Best of both worlds, and it makes it possible to stay in beast form without any clumsy switches.

EDIT: Added the name of the soup.

[Katana]

Don't get me wrong, I definitely had a tough time with it. However, I happened to have been doing a lot of experimental recipes lately, and even had a Spicy Soup (the one that gives Beast Shot) ready, since I just spent the whole time in Beast mode. Surprisingly enough, I did use a lot of food but had no deaths (thank god, cause I don't know when my last save was)
When I beat him and collected the treasure, I was a little thrilled with myself to glance at a walkthrough and see "Some say this is more difficult than the final boss"
Score one for meee.

[Lady-Succubus]

I died at least five times because of this boss. And had to traverse across two half abysses to get back to the boss. >.>