Pokemondex
#0204pineco
#0206dunsparce

forretress

Generation II · #0205 — Bagworm Pokémon

Forretress, known in Japan as Foretos, is a Bug/Steel-type Pokémon that represents one of Generation II's most distinctive defensive specialists. As the evolution of Pineco, Forretress maintains National Pokédex number 205 and embodies the concept of an impenetrable fortress wrapped in biological armor. Despite its intimidating appearance, Forretress possesses a base stat total of 465, making it a moderately powered Pokémon that compensates for its low speed with exceptional defensive capabilities. Its Defense stat of 140 stands out as its most notable strength, allowing it to withstand significant physical attacks while its Special Defense of 60 remains comparatively modest. The mystery of what truly exists beneath Forretress's layered steel shell has captivated Pokémon researchers since its introduction, with Pokédex entries consistently noting that the creature's interior remains completely obscured from view.

Base Stats

HP75
Attack90
Defense140
Sp. Atk60
Sp. Def60
Speed40
Total465
Height

1.2m

Weight

125.8kg

Category

Bagworm Pokémon

Gender

Male 50% / Female 50%

Color

purple

Shape

ball

Habitat

forest

Abilities
Sturdy

Prevents being KOed from full HP, leaving 1 HP instead. Protects against the one-hit KO moves regardless of HP.

OvercoatHidden

Protects against damage from weather.

Forretress Biology & Physical Characteristics

Forretress is a large, spherical insectoid Pokémon standing 1.2 meters tall and weighing 125.8 kilograms, presenting a bulbous silhouette dominated by defensive plating. The Pokémon's body is divided into upper and lower halves, each capped by bumpy steel plates that provide structural reinforcement against physical impacts. Beneath this outer armor lies a smooth, reddish inner shell punctuated by four cylindrical spikes that taper to sharp points, creating a formidable barrier around its vulnerable interior. The inner shell features a straight opening along its front from which two large, round eyes with prominent pupils peer outward, serving as Forretress's primary sensory organs. The exact nature of what lies beyond these eyes—the true biological form of Forretress—remains unknown, as the creature opens its shell to capture prey at such extraordinary speed that observers cannot glimpse its interior mechanics. As demonstrated in Pokémon Scarlet and Violet, Forretress possesses latent levitation capabilities despite its sedentary appearance.

Pokedex Numbers

national#205
original johto#94
updated johto#94
conquest gallery#57
updated alola#269
updated ulaula#90
paldea#259

Training

EV Yield2 Defense
Catch Rate75
Base Happiness70
Base Exp.163
Growth Ratemedium

Breeding

Egg Groupsbug
GenderMale 50% / Female 50%
Egg Cycles20 (5355 steps)

Forretress Breeding, Gender Ratio & Egg Groups

Forretress maintains a perfectly balanced gender ratio of 50% male to 50% female, allowing for straightforward breeding combinations without specialized mechanics. The Pokémon belongs to the Bug Egg Group, restricting its breeding compatibility to other members of this diverse group that includes numerous insectoid and bug-type Pokémon. Breeding Forretress requires approximately 20 egg cycles to produce an offspring, translating to roughly 4,884 to 5,140 steps before the egg hatches, representing a moderate hatching time that falls in the middle range of Pokémon breeding duration. The resulting offspring emerges as a newly hatched Pineco, requiring subsequent leveling and experience accumulation before reaching the level 31 threshold necessary for evolution into Forretress. Forretress itself boasts a base happiness value of 70, indicating a reasonably friendly disposition toward trainers despite its intimidating appearance, though this metric was adjusted to 50 in later generations after Pokémon Sword and Shield.

Sprites

forretress Front
Front
forretress Back
Back
forretress Shiny Front
Shiny Front
forretress Shiny Back
Shiny Back
forretress Home
Home
forretress Home Shiny
Home Shiny
forretress Showdown
Showdown
forretress Showdown Shiny
Showdown Shiny

TMs & HMs

tm01

lets go pikachu lets go eevee

tm02

crystal

tm02

gold silver

tm03

crystal

tm03

gold silver

tm03

lets go pikachu lets go eevee

tm04

gold silver

tm04

crystal

tm05

lets go pikachu lets go eevee

tm06

yellow

tm06

gold silver

tm06

red blue

tm06

crystal

tm06

emerald

tm06

firered leafgreen

tm06

diamond pearl

tm06

platinum

tm06

ruby sapphire

tm06

colosseum

tm06

black 2 white 2

+769 more TMs/HMs

Forretress Evolution, Mega Evolution & Special Forms

Forretress evolves from Pineco through a straightforward leveling mechanism triggered at level 31, representing one of the more accessible evolution thresholds in Pokémon Generation II. The evolutionary process transforms the spherical Bug-type Pineco into the formidable Bug/Steel-type Forretress, granting the evolved form superior physical bulk and the Steel typing that fundamentally alters its defensive profile. This transition from Bug-type to dual Bug/Steel typing provides Forretress with multiple resistances, reducing damage from Rock, Bug, Grass, Ice, Dragon, Fairy, Flying, and Normal-type moves, while granting an immunity to Poison-type damage. The evolution physically manifests as the development of the intricate steel plating system and the emergence of the internal spike structures visible through the shell's transparent portions. Forretress does not possess a Mega Evolution form, remaining in its standard form throughout all competitive and casual gameplay contexts.

Where to Find

Location data not available for this Pokémon in the database.

Forretress Behaviour and Natural Habitat

Forretress exhibits highly specialized behavior adapted to an arboreal lifestyle, remaining immovably rooted to tree trunks in tropical and temperate forests where it spends most of its existence stationary and unmoving. When threatened by enemies, Forretress employs a defensive strategy of scattering pieces of its hardened outer shell, an action described in its Pokédex entries as occurring through conditioned reflex rather than conscious decision-making. The creature's predatory habits involve opening its shell to capture passing prey with remarkable speed, an evolutionary adaptation that allows it to feed while maintaining the security of its protective armor. This combination of sessile existence and rapid feeding behavior suggests that Forretress evolved to be an ambush predator, waiting patiently on tree trunks until prey ventures within striking distance. Its ability to shed shell fragments as a defensive mechanism indicates that Forretress can repair and replace its outer armor, allowing it to maintain protection even after sustaining damage.

Pokedex Entries

gold

Its entire body is shielded by a steel-hard shell. What lurks inside the armor is a total mystery.

silver

It remains immova­ bly rooted to its tree. It scatters pieces of its hard shell to drive its enemies away.

crystal

Usually found hanging on to a fat tree trunk. It shoots out bits of its shell when it sees action.

rubysapphire

FORRETRESS conceals itself inside its hardened steel shell. The shell is opened when the POKéMON is catching prey, but it does so at such a quick pace that the shell’s inside cannot be seen.

emerald

It keeps itself inside its steel shell. The shell is opened when it is catching prey, but it is so quick that the shell’s inside cannot be seen.

firered

It remains immovably rooted to its tree. It scatters pieces of its hard shell to drive its enemies away.

leafgreen

Its entire body is shielded by a steel- hard shell. What lurks inside the armor is a total mystery.

diamondpearlplatinum

It is encased in a steel shell. Its peering eyes are all that can be seen of its mysterious innards.

heartgold

Its entire body is shielded by a steel-hard shell. What lurks inside this shell is a total mystery.

soulsilver

It remains immovably rooted to its tree. It scatters pieces of its hard shell to drive its enemies away.

blackwhite

It is encased in a steel shell. Its peering eyes are all that can be seen of its mysterious innards.

black 2white 2

It is encased in a steel shell. Its peering eyes are all that can be seen of its mysterious innards.

x

It is encased in a steel shell. Its peering eyes are all that can be seen of its mysterious innards.

y

It remains immovably rooted to its tree. It scatters pieces of its hard shell to drive its enemies away.

omega rubyalpha sapphire

Forretress conceals itself inside its hardened steel shell. The shell is opened when the Pokémon is catching prey, but it does so at such a quick pace that the shell’s inside cannot be seen.

ultra sun

When something approaches it, it fires off fragments of its steel shell in attack. This is not a conscious action but a conditioned reflex.

ultra moon

In the moment that it gulps down its prey, the inside of its shell is exposed, but to this day, no one has ever seen that sight.

Forretress Name Origin & Design Inspiration

Forretress derives its name from a clever linguistic blend combining 'fortress' with 'forest,' reflecting both its defensive architectural aesthetic and its arboreal habitat among trees. The Japanese name Foretos similarly emphasizes the fortress concept while incorporating elements of the evolutionary line's insectoid nature. The Pokémon's design draws heavy inspiration from armored insects, particularly bagworms that construct protective cases from environmental materials, though Forretress's armor appears to be grown organically from its own biological systems. The spherical body shape with protruding spikes creates visual parallels to medieval spiked barriers or porcupines, emphasizing its defensive purpose. The contrast between the smooth, reddish inner shell and the bumpy, steely outer plating suggests a layered defense system, with the outer shell serving as a sacrificial layer that can be shed and regenerated while the inner shell protects the vital organs. The design successfully communicates both security and ecological integration, presenting a Pokémon perfectly adapted to a specific environmental niche.

Learnable Moves

Forretress can learn 97 moves:

Move
Type
Cat.
Power
Acc.
PP
ally switchpsychic
Status
15
attractnormal
Status
10015
autotomizesteel
Status
15
bidenormal
Physical
10
blocknormal
Status
5
body pressfighting
Physical
8010010
body slamnormal
Physical
8510015
bug bitebug
Physical
6010020
bug buzzbug
Special
9010010
bulldozeground
Physical
6010020
captivatenormal
Status
10020
confidenormal
Status
20
counterfighting
Physical
10020
curseghost
Status
10
defense curlnormal
Status
40
digground
Physical
8010010
double teamnormal
Status
15
double edgenormal
Physical
12010015
drill runground
Physical
809510
earth powerground
Special
9010010
earthquakeground
Physical
10010010
endurenormal
Status
10
explosionnormal
Physical
2501005
facadenormal
Physical
7010020
flash cannonsteel
Special
8010010
frustrationnormal
Physical
10020
giga draingrass
Special
7510010
giga impactnormal
Physical
150905
gravitypsychic
Status
5
gyro ballsteel
Physical
1005
hard presssteel
Physical
010010
headbuttnormal
Physical
7010015
heavy slamsteel
Physical
10010
helping handnormal
Status
20
hidden powernormal
Special
6010015
hyper beamnormal
Special
150905
ice spinnerice
Physical
8010015
iron defensesteel
Status
15
iron headsteel
Physical
8010015
laser focusnormal
Status
30
light screenpsychic
Status
30
lungebug
Physical
8010015
magnet riseelectric
Status
10
metal soundsteel
Status
8540
mimicnormal
Status
10
mirror shotsteel
Special
658510
natural giftnormal
Physical
10015
pain splitnormal
Status
20
paybackdark
Physical
5010010
poison jabpoison
Physical
8010020
pouncebug
Physical
5010020
protectnormal
Status
10
rain dancewater
Status
5
rapid spinnormal
Physical
5010040
reflectpsychic
Status
20
restpsychic
Status
5
returnnormal
Physical
10020
reversalfighting
Physical
10015
rock blastrock
Physical
259010
rock polishrock
Status
20
rock sliderock
Physical
759010
rock smashfighting
Physical
4010015
rock tombrock
Physical
609515
rolloutrock
Physical
309020
roundnormal
Special
6010015
sand tombground
Physical
358515
sandstormrock
Status
10
secret powernormal
Physical
7010020
seed bombgrass
Physical
8010015
self destructnormal
Physical
2001005
signal beambug
Special
7510015
sleep talknormal
Status
10
smart strikesteel
Physical
7010
snorenormal
Special
5010015
solar beamgrass
Special
12010010
spikesground
Status
20
stealth rockrock
Status
20
steel beamsteel
Special
140955
stone edgerock
Physical
100805
strengthnormal
Physical
8010015
string shotbug
Status
9540
struggle bugbug
Special
5010020
substitutenormal
Status
10
sunny dayfire
Status
5
swaggernormal
Status
8515
sweet scentnormal
Status
10020
swiftnormal
Special
6020
tacklenormal
Physical
4010035
take downnormal
Physical
908520
telekinesispsychic
Status
15
tera blastnormal
Special
8010010
thunder waveelectric
Status
9020
toxicpoison
Status
9010
toxic spikespoison
Status
20
venoshockpoison
Special
6510010
volt switchelectric
Special
7010020
zap cannonelectric
Special
120505

Forretress Competitive Battle Guide

Forretress occupies a specialized defensive niche in competitive Pokémon formats, leveraging its exceptional 140 Defense stat and Steel typing to wall physical attackers effectively. Its dual-type classification grants it impressive resistances to ten different types while providing immunity to Poison, creating a defensive profile that allows strategic positioning against many common threats. The Sturdy ability functions as its standard capability, preventing Forretress from suffering single-hit knockout moves like Horn Drill or Ice Climber's destabilization attacks, while also ensuring that Forretress survives any attack that would otherwise reduce its HP from full to zero with exactly one HP remaining. The hidden Overcoat ability provides alternative functionality by protecting Forretress from weather-based damage from Hail, Sandstorm, Volcanic Ash, and similar environmental hazards. Forretress's moveset options emphasize utility and defensive coverage rather than offensive pressure, with moves like Stealth Rock, Spikes, Toxic Spikes, and Mirror Coat allowing it to provide team support through entry hazard setup and indirect damage. Its offensively modest Attack stat of 90 and Special Attack of 60 limit its offensive contribution, though moves like Iron Head, X-Scissor, and Earthquake provide reasonable coverage options when required.

Commonly Asked Questions About Forretress

What type is Forretress?

Forretress is a bug and steel type Pokemon.

What does Forretress evolve from?

Forretress evolved from pineco.

What are Forretress's weaknesses?

Forretress is weak to fire type moves.

Forretress Cultural Impact & Franchise History

Forretress achieved particular prominence through Brock's use of the Pokémon throughout extended portions of the Pokémon anime series, becoming associated with the Rock-type specialist trainer despite its Bug/Steel typing. Brock's Forretress consistently demonstrated the Pokémon's defensive capabilities and loyal companionship, participating in numerous gym battles and important trainer encounters that helped establish Forretress as a reliable competitive partner. The Pokémon's mysterious interior and impenetrable exterior have made it a subject of fascination among Pokémon fans, spawning numerous theories and discussions about what biological secrets might exist within its armor. Forretress has appeared in multiple Pokémon Trading Card Game expansions as both common and rare cards, with artwork highlighting its distinctive spherical design and protective plating. The creature's presence in Pokémon Scarlet and Violet as a levitating Pokémon has reinvigorated interest in the species, revealing new dimensions to its biological capabilities that challenge previous assumptions about its mobility.

Where to Find Forretress in Every Pokémon Game

Forretress demonstrates consistent availability across the majority of Pokémon game titles, appearing most prominently in Generation II games Gold, Silver, and Crystal as a post-game encounter and breeding option. In remakes HeartGold and SoulSilver, Forretress maintains similar availability to its original counterparts, allowing players to encounter Pineco and evolve it through the established level 31 threshold. The species becomes progressively available in nearly every subsequent generation, though specific encounter locations and methods vary by individual title. In Pokémon Scarlet and Violet, Forretress appears as a legitimate Pokédex entry numbered 259 in the regional register, with encounters occurring in various forested areas where it maintains its characteristic arboreal habitat. Trainers seeking to obtain Forretress typically begin with a wild Pineco encounter, which evolves automatically upon reaching level 31 regardless of battle experience or specific conditions. Alternatively, Pokémon from Egg breeding through the Bug Egg Group provides access to Forretress lineage members, offering flexibility in acquisition methods across different game generations and playstyles.