Revision - twin light fish - Roco Kingdom: World Wiki

Overview

Twin-Light Fish (双灯鱼) is a Water and Electric dual-type spirit exclusive to Season 1 of Roco Kingdom: World. It is the base form of a two-stage line that evolves into Sharp Lamp Fish (利灯鱼) at Level 30.

Lore descriptions note that Twin-Light Fish uses bioluminescent bacteria rather than light magic to produce its characteristic glow. The spirit must keep its head lamps above the water surface, which influences where it appears in the open world.

Evolution Chain

Stage	Name	Chinese	Evolves At
1	Twin-Light Fish	双灯鱼	Base form
2	Sharp Lamp Fish	利灯鱼	Level 30

How to Obtain

Twin-Light Fish is a Season 1 exclusive encounter triggered through the Nightmare Shackles system. It cannot be purchased from shops.

Sanctuary Fruit Pair

Fruit pair: Two pure Water-type sanctuary fruits
Rotation: 2 to 2 alternation between the two Water fruit families inside the sanctuary
Extra requirement: Access to the second Water fruit family depends on unlocking at least 100 Pokedex entries, which is the gate to the deep-blue whale family used in community farming routes

April 16 Compensation Egg

As part of the April 16, 2026 Magic Renewal patch, every player received a mail containing one shiny Twin-Light Fish egg. The egg hatches into a shiny variant without requiring the player to hit the Nightmare Shackles pity counter. This is the most accessible path to a shiny Twin-Light Fish during Season 1.

Competitive Notes

Offensive coverage: Water hits Fire, Ground, and Stone; Electric hits Water and Flying. Together the dual typing threatens most early-game frontlines.
Defensive weaknesses: Ground-type moves are especially dangerous since Electric is weak to Ground and Water alone does not cover the hole.
Synergy with Rain teams: In a Rain-biased composition, Water moves gain a 50 percent power boost, which pushes Twin-Light Fish into serious damage territory.

Tips

Hatch the April 16 shiny egg before investing in wild farming. A free guaranteed shiny skips the pity grind entirely.
Keep the spirit in rainy zones or Rain weather teams to amplify its Water damage.
Evolve promptly at Level 30. The Sharp Lamp Fish form has the stronger skill pool and higher stats.

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