Caterpie sits at the start of its evolution line — not yet at full power, but that changes fast. Most trainers push through to Butterfree as fast as possible. An original Gen 1 pick. Only weak to Fire, Poison, Flying, and Rock.
An unusually even spread gives Caterpie flexibility. HP barely edges ahead. But Sp. Atk isn't far off. Easy to catch and follows a medium-fast 1M XP curve. Yields 1 HP EV.
If you touch the feeler on top of its head, it will release a horrible stink to protect itself.
Caterpie Weakness
VulnerableType-wise, Caterpie takes extra damage from Fire, Poison, Flying, and Rock. Standard number of weaknesses for the Bug typing.
- Only 15 types exist — Dark, Steel, and Fairy are absent
- Ghost has no effect on Psychic (a known bug, fixed in Gen II)
- Special stat governs both offense and defense — no Sp.Atk / Sp.Def split
Caterpie starts a line toward Butterfree. Can't breed this Bug type (195 stats), so keep the evolution path going. Evolving adds up to 200 stat points total.
How to Evolve
Best Build
Gen 1 build content has limited support (no abilities, held items, or natures).
Try selecting a different game/generation filter, or check back later.
Not a lot to pick from. Caterpie gets Bug STAB for same-type damage, and Normal coverage rounds things out. You're building around what's available rather than choosing from a deep bench.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Caterpie is available from early-game routes onward at high spawn rates. 1 encounter spots give you plenty of options. Grab one early and it'll be ready to evolve or train by mid-game.
Best Locations
Caterpie is meant to evolve into Metapod. At 195 BST, the stats aren't there for competitive play yet. Pre-evolution Pokemon rarely hold up against fully evolved threats.
Caterpie evolves into Metapod at level 7. Caterpie is the base form in a 3-stage evolutionary line.
Base 45 Speed is low. Priority moves or Trick Room are the way to go. On offense, Caterpie is leaning toward the physical side (base 30 Attack). Defensively? Fragile — can't afford to take many hits.
Caterpie appears in 19 games, including Yellow, Red & Blue, and Gold & Silver.
One of the original 151, Caterpie has appeared in 19 games — most mainline games. From Red & Blue through the latest titles, it's rarely been left out of a regional Pokedex.
- Gen IY
Yellow - Gen IRBDebut

Red & Blue - Gen IIGS

Gold & Silver - Gen IIC
Crystal - Gen IIIRS

Ruby & Sapphire - Gen IIIFRLG

FireRed & LeafGreen - Gen IIIE
Emerald - Gen IVPt
Platinum - Gen IVHGSS

HeartGold & SoulSilver - Gen IVDP

Diamond & Pearl - Gen VBW

Black & White - Gen VB2W2

Black 2 & White 2 - Gen VIXY

X & Y - Gen VIORAS

Omega Ruby & Alpha Sapphire - Gen VIIUSUM

Ultra Sun & Ultra Moon - Gen VIISM

Sun & Moon - Gen VIILGPE

Let's Go Pikachu & Eevee - Gen VIIISwSh

Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP

Brilliant Diamond & Shining Pearl - Gen IXSV

Scarlet & Violet - Gen IXLZA
Legends: Z-A
