Rock Bug
Insect · 2-star rarity · Sells for 110 Gold
No longer available. It was only around during the Pyrofrost Bathhouse season, 8 Nov 2025 – 19 Dec 2025.
How to get: Onsen Mountain (Crater Lake)
Where and when
The Pyrofrost Bathhouse season ended on 19 Dec 2025. These are the conditions it had while the season ran.
| Kind | Insect |
| Availability | Unavailable Pyrofrost Bathhouse · 8 Nov 2025 – 19 Dec 2025 |
| Where | Crater Lake |
| Time | All day |
| Weather | SunnyRainyRainbow |
Star grades
Every Rock Bug is caught at one of five star grades, decided by its size, which can be anywhere from 1 cm to 6 cm. The grade sets the sale price: a 5-star sells for 8× as much as a 1-star.
| Grade | Chance | Size from | Sells for |
|---|---|---|---|
| ★☆☆☆☆ Tiny | 50.19% | 1 cm | 110 |
| ★★☆☆☆ Small | 28.00% | 2 cm | 165 |
| ★★★☆☆ Fitting | 15.00% | 3 cm | 220 |
| ★★★★☆ Large | 4.50% | 4 cm | 440 |
| ★★★★★ Huge | 2.31% | 5 cm | 880 |
On average, one Rock Bug sells for 175.
Description
| Encyclopedia | A toy bug made of stone, barging around with its tough little body. |
Name in every language
| 简体中文 | 石块虫 |
| 繁體中文 | 石塊蟲 |
| English | Rock Bug |
| Deutsch | Steininsekt |
| Français | Insecte de roches |
| 日本語 | イシコロムシ |
| 한국어 | 돌 벌레 |
| Español | Bicho de roca |
| Português | Bicho de Pedregulho |
| ไทย | แมลงก้อนหิน |
| Русский | Каменный жук |
| Bahasa | Kutu Batu |