Friendship evolutions · Original GBC · Not HGSS
Happiness evolutions & friendship checker
In original Pokemon Gold and Silver, seven species evolve by friendship: Golbat → Crobat, Chansey → Blissey, Eevee → Espeon / Umbreon, Togepi → Togetic, and the baby lines Pichu / Cleffa / Igglybuff. Raise friendship to 220+, confirm the band at the Goldenrod Happiness Rater, then level up once. This page is a full checklist and live simulator linked to the site’s Mechanics Lab, maps, and related guides.
Fast answer
220+ friendship, then one level-up
Friendship never evolves a mon by itself. The game checks the evolution table when the Pokémon gains a level. At that moment friendship must be ≥ 220, and the mon must not hold an Everstone.
Wild, gift, and link-traded Pokémon start at 70. Eggs hatch at 120. A Friend Ball catch starts at 200 — only 20 points short of evolution.
Eevee only: same 220 threshold, but time of day picks the branch. Level between 04:00–17:59 for Espeon, or 18:00–03:59 for Umbreon. Full walkthrough: Eevee day/night guide.
Everyone else (Crobat, Blissey, Togetic, Pikachu, Clefairy, Jigglypuff) evolves any time of day.
Evolution list
Every happiness evolution in Gold & Silver
Filter the set, then open Pokédex and map links for the base form. Sprites follow your saved Gold/Silver version preference.
Golbat → Crobat
Any time · 220+ · level-up. Evolve Zubat at 22 first. Wild Golbat appears later in Dark Cave (Blackthorn side) and other caves.
Chansey → Blissey
Any time · 220+ · level-up. Rare Kanto grass on Route 13 and nearby routes after the S.S. Aqua opens.
Eevee → Espeon
Morning/day (04:00–17:59) · 220+ · level-up. Free Lv.20 gift at Bill’s family house in Goldenrod after meeting Bill in Ecruteak.
Eevee → Umbreon
Night (18:00–03:59) · 220+ · level-up. Same Bill gift; wrong window yields Espeon instead.
Togepi → Togetic
Any time · 220+ · level-up. Mystery Egg hatches into Togepi after the Violet Center delivery; hatched eggs start at 120 friendship.
Pichu → Pikachu
Any time · 220+ · level-up. Breed Pikachu/Raichu at the Day Care; wild Pikachu is also on Route 2 in Kanto.
Cleffa → Clefairy
Any time · 220+ · level-up. Breed Clefairy/Clefable; wild Clefairy appears in Mt. Moon after Kanto opens.
Igglybuff → Jigglypuff
Any time · 220+ · level-up. Breed Jigglypuff/Wigglytuff; wild Jigglypuff can show early on Route 46.
Live simulator
Friendship simulator & rater planner
Deltas match original Gold/Silver friendship rules and shrink past 100 and 200. Progress saves in this browser; the Mechanics Lab has the same live tools.
Band range: 100–149
Level-up window: Any time · Crobat / Blissey / Togetic / babies ignore day-night
Apply actions
Buttons use the three happiness bands (<100 / 100–199 / 200+). Haircut buttons are single outcomes; real cuts roll the probability table once per day.
Goldenrod checker
Happiness Rater message bands
Put the target in party slot one, then talk to the teacher in the Happiness Rater house on the east side of Goldenrod. Dialogue maps to these hidden ranges:
Raise & protect friendship
Actions from the Gen 2 engine tables
Each action lists the three deltas for friendship <100, 100–199, and 200+ on original Gold and Silver.
| Action | <100 | 100–199 | 200+ | Notes |
|---|---|---|---|---|
| Gain a level | +5 | +3 | +2 | Also the evolution trigger |
| Vitamin (HP Up, Protein…) | +5 | +3 | +2 | Dept. Store stock |
| Gym Leader battle | +3 | +2 | +1 | Per leader fight |
| X item / learn a move | +1 | +1 | +0 | Tiny mid-band help |
| Walk / bike | +1 | +1 | +1 | ~512 steps per point |
| Younger haircut · great (10%) | +10 | +10 | +4 | Sun / Wed / Fri · ¥300 |
| Older haircut · great (20%) | +5 | +5 | +2 | Tue / Thu / Sat · ¥500 |
| Daisy grooming | +3 | +3 | +1 | Pallet Town · 15:00–15:59 · succeeds 255/256 |
| Faint in battle | −1 | −1 | −1 | Every faint hurts |
| Poison faint / strong foe | −5 | −5 | −10 | Large late-band penalty |
| Heal Powder / Energypowder | −5 | −5 | −10 | Bitter medicine |
| Energy Root | −10 | −10 | −15 | Bitter medicine |
| Revival Herb | −15 | −15 | −20 | Worst bitter hit |
Daily boosts
Haircut Brothers schedule
Younger brother · ¥300
Sun / Wed / Fri in Goldenrod Underground. Outcome table: 60% okay (+1), 30% good (+3), 10% great (+10 / +4 at 200+). High-risk high-reward when you are close to 220.
Older brother · ¥500
Tue / Thu / Sat same tunnel. 30% okay (+1), 50% good (+3), 20% great (+5 / +2 at 200+). Steadier average while grinding Crobat or Togetic.
The Underground appointment is global: only one Pokémon total can receive a paid cut per RTC day. Pair it with the days of the week calendar and the live Mechanics Lab week panel.
Check
Goldenrod Happiness Rater
Lead-slot only. Top love message is the cleanest signal before spending a Rare Candy.
Boost
Goldenrod Underground
Haircut Brothers and the weekday bargain shop share this tunnel. Use the version toggle on the atlas for Silver pins.
Kanto
Daisy’s grooming
After the S.S. Aqua opens Kanto, Daisy in Pallet Town offers grooming only from 15:00 through 15:59, once per day. The friendship gain succeeds on 255 of 256 rolls, so it is not mathematically guaranteed.
Eevee gift
Bill’s family house
Lv.20 Eevee after meeting Bill in Ecruteak. Starts at 70 friendship like other gifts.
Fast start
Friend Ball shortcut
Kurt in Azalea turns a Red Apricorn into a Friend Ball. Wild catches start at 200 friendship — perfect for Zubat/Golbat routes when you want Crobat with minimal grinding. Full tree map and ball recipes: Apricorns & Kurt special balls. Item entry: Friend Ball.
Saved checklist
Before you force a level-up
Checks save in localStorage. Mirror milestones in Run Progress and catch flags in the Catch Checklist.
At a glance
Friendship families
Golbat
Crobat
Chansey
Blissey
Eevee
Espeon
Eevee
Umbreon
Togepi
Togetic
Pichu
Pikachu
Cleffa
Clefairy
Igglybuff
JigglypuffFAQ
Common friendship questions
Why didn’t it evolve at “really trusts you”?
That band is 200–249. Evolution needs 220+, so a mon at 205 still fails. Keep walking or take one more haircut, then try again.
Do traded Pokémon lose friendship?
Trades reset friendship to the gift/catch baseline (70) on the receiving cart. Plan Crobat/Togetic after the mon is home for good.
Is this the same as HeartGold / SoulSilver?
No. This page is original Game Boy Color Gold and Silver. Remakes share the 220 idea but differ on locations, items, and some QoL systems.
Where do I track progress site-wide?
Use Catch Checklist for species flags, Run Progress for story gates, and Mechanics Lab for the live friendship tool.
Keep going