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Health 60 (+18 per level)
Damage 5 (+1 per level)
Speed 10 m/s

The Jellyfish is a returning airborne-jellyfish Monster in Risk of Rain 2.

Environments[edit | edit source]

Skill & Behavior[edit | edit source]

Jellyfishes spawn on the outskirts of an Environment and typically wait in-place. Once they spot a player, they then proceed to fly towards that player in a typical swimming motion.

Self-Detonation[edit | edit source]

When the Jellyfish comes close enough, they then prepare to explode into a ball of electricity, dealing at most 1000% damage with a Proc Coefficient of 2.0. However, this attack can be canceled by attacking it.

Self-exploded Jellyfish won't drop Gold.

Lore[edit | edit source]

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This is the logbook entry of D. Furthen, naturalist for the UES [Redacted] in conjunction with the UES Research and Documentation of Outer Life. I am joined by my good friend Tharson, who is keeping me safe through this journey.


Today, we’ve seen our first form of outer life on this planet, merely a few hours after our untimely landing.

I will describe its properties below. I have assigned their common name as ‘Icarian Jellyfish’.

• Large, round invertebrate, about 2m in diameter, with two trailing tentacles. They shimmer a white-blue. They greatly resemble Medusozoa from Earth. 

• They seem to be experiencing neutral buoyancy in this planet’s atmosphere, causing them to float. I theorize this is due to a unique gas composition inside of their hull, which they expel to traverse.

• When observed, these Jellyfish seem to bathe in the sun, slowly rotating their bodies as they do so. They may be cold-blooded.

• By my request, Tharson approached a lone Jellyfish. After detecting his presence, it began to glow, quiver, and pulse before suddenly detonating with a brilliant flash and a loud bang, causing severe burns and temporary blindness to Tharson. I theorize that by exciting the gases inside of their hulls, these Jellyfish can ignite those gases and explode, scorching everything nearby. Tharson is OK from this encounter.