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Overview

Caterpillar (小草虫) is a hidden rare spirit in Roco Kingdom: World. It triggers at the same Holy Feather Altar statue as Stone Stone, but requires a water-type throw rather than a ground-type throw.

How to Obtain

1. Teleport to the Holy Feather Altar Magic Source in Old Airship Route.

2. Approach the statue.

3. Throw a water-type spirit at the statue. Caterpillar spawns around the statue.

4. Capture with any Gulu Ball.

See Also

• Old Airship Route - spawn zone

• Stone Stone - sibling statue trigger

• Hidden Secrets and Collectibles - full hidden spirit list

Statue Trigger Details

The Holy Feather Altar statue accepts a single throw to spawn Caterpillar. The thrown spirit is not consumed and stays in the player's party. Any Water-type spirit at any level qualifies as the trigger; a low-level Water-type works as well as a fully evolved one.

Stone Stone shares the same statue and reacts to a Ground-type throw. Carrying both a Water-type and a Ground-type before teleporting to the altar lets a player complete both hidden spawns on the same visit.

Capture Tips

• Approach the spawn from behind once it appears. Backstabbing doubles the first throw's capture rate.

• Caterpillar's base capture rate is lower than ordinary wild spirits in the area, so an Advanced Gulu Ball is recommended over the Normal tier.

• If the spawn despawns before being caught, leave the zone and re-trigger the statue. The mechanism is repeatable for the throw, but the hidden spirit itself is one-time per account.

Element Notes

Caterpillar reads as a Bug-type companion at launch. Bug-type matchups: strong into Grass, Dark, and Phantom; weak to Fire, Wing, and Mech. Carry coverage that handles those weaknesses if Caterpillar is the active spirit during exploration. Full chart on the Element Types page.