彩虹水母也可以使用網或是拖網活捉。As inventory items, they can be murdered by right-clicking them to produce Dead Rainbow Jellyfish. A Rainbow Jellyfish placed on the ground will immediately turn into a Dead Rainbow Jellyfish. They will have a short animation where they twitch twice before settling.
Rainbow Jellyfish can be cooked to make Cooked Rainbow Jellyfish, while Dead Rainbow Jellyfish can be dried on a Drying Rack to obtain Dried Jellyfish. Rainbow Jellyfish cannot be used in the Crock Pot. They can be eaten to glow rainbow colors in order to keep Charlie away, it lasts about 3 segments. The glow becomes weaker as time passes, until fading completely.
在新月的晚上彩虹水母會開始遷移，它們大量地在火山生成並逐漸遷移到地圖的中心。在遷移完畢之後，彩虹水母將會回到火山。(你可以透過位於 components\rainbowjellymigration.lua 的程式碼驗證)
- Rainbow Jellyfish were added to the Shipwrecked DLC more than a year after its official completion in the Home Sea Home update, after being tested in a beta branch for several months.