Jellyfish

Jellyfish are neutral mobs commonly found in the first level of the Underwater World, called the Reef. When killed they drop 1 Fish Fillet and rarely a Jelly Cap which is an essential item to craft the Jelly Lantern.

This particular mob has the capacity to glow upon falling at sleep as soon as the night phase starts. For this reason, a convenient strategy is to set up camp nearby Jellyfish pack as they will provide not only a good amount of light but also act as a small food source.

Behavior
Jellyfish are usually found in packs of 4-5 individuals. They tend to float around the map and it is rare to find a Jellyfish left alone by itself.

The player or other mobs vicinity will not affect their movement as Jellyfish are not scared by anyone. On the other hand, there's a chance for the player, if very close to the Jellyfish, to get accidentally electrocuted.

The Jellyfish will aslo eat any type of meat left on the ground by the player.

Hunting
Hunting Jellyfish can be highly rewarding and not efficient at the same time. When an individual Jellyfish is hit with a melee weapon the entire pack of Jellyfish will attack the player. Because of the low probability of getting a Jelly Cap, this strategy is not always the most convenient.

When hitting an individual with long range weapons, the pack of Jellyfish will not chase the player. Although this strategy might seem the most convenient, as soon as the player kills a Jellyfish the meat loot will be eaten by the pack, leaving the player with nothing but a Jelly Cap in the most favorable circumstances.