Caterpie is a PokeBonk League partner of common rarity and Bug type. Its unlock challenge counts from your first run, with no League members needed. During a run it evolves into Metapod (Lv. 8) → Butterfree (Lv. 36).
- Passive
- More experience and a shield; extra armor as Metapod.
- How to unlock
- Evolve 3 times during your runs.
- League members needed
- None
- Evolution
- Caterpie → Metapod (Lv. 8) → Butterfree (Lv. 36)
Partner data comes from community testing on v0.7.7 (2026-10-20), before Season 2. The game is now on v0.8.28, so some challenges may have changed since, and we re-check them as we play.
Moves and fusions for Caterpie
- Signature fusion: Resonant Web, from String Shot + Bug Buzz at max level in Bill's Machine.
- Two maxed Bug moves fuse into Swarm, the Bug type fusion, an easy target that fits Caterpie's type.
Plan a build with Caterpie All move fusions →
Unlock alongside Caterpie
These partners' challenges count the same thing as Caterpie's (evolutions), so the same runs move all of them forward.
- Lapras: Evolve 20 times during your runs.
Other Bug partners
Weedle · Paras · Venonat · Scyther · Pinsir
How do I unlock Caterpie in PokeBonk?
Evolve 3 times during your runs.
What type is Caterpie in PokeBonk?
Bug. More experience and a shield; extra armor as Metapod.
When does Caterpie evolve in PokeBonk?
Caterpie → Metapod (Lv. 8) → Butterfree (Lv. 36).