Pokedex Entries - Note: Completing this section requires at least one copy of either Red/Blue/Yellow Versions, both Gold and Silver Versions, two game systems, and a link cable (GameBoy Color only)
See all 249 Pokemon (not including Mew or Celebi)
If playing the 3DS Virtual Console release, see all 250 Pokemon (including Celebi, not including Mew)
Transfer the following Pokemon from Red, Blue, or Yellow Version:
Trade the following Pokemon not obtainable in Crystal Version from Gold or Silver Versions:
Vulpix/Ninetails - Silver Version Exclusive
Mankey/Primeape - Gold Version Exclusive
Capture all In-Game Legendary Pokemon
Raikou - Roaming Johto after initially encountering it in the Burned Tower
Entei - Roaming Johto after initially encountering it in the Burned Tower
Suicune - Static Encounter in the Tin Tower 1F after saving the director in the Radio Tower and receiving the Clear Bell and following Suicune across Johto. After releasing from the Burned Tower, follow to outside National Park on Route 36, then the middle entrance of Mt. Mortar, then next to the Poke Seer\'s house in Cianwood.
Lugia - Static Encounter in Whirl Islands B2F after obtaining the Silver Wing from the old man in eastern Pewter City
Ho-Oh - Static Encounter in the Tin Tower 10F after obtaining the Rainbow Wing. Requires catching/defeating Raikou, Entei, and Suicune on the current game cartridge (cannot be traded) then talking to a Monk in the Tin Tower
Celebi - 3DS Virtual Console Exclusive - After defeating the Elite Four, receive the GS Ball at the Goldenrod City Pokemon Center and give it to Kurt in Azalea Town. After 24 hours, return to Kurt then take the GS Ball to the shrine in Ilex Forest for a Static Encounter with Celebi. This Celebi can be transferred to Pokemon Bank/Home legitimately.
Register all 249 Pokemon as caught in the Pokedex (not including Mew or Celebi). See this checklist: bit.ly/CrystalPokedex
If playing the 3DS Virtual Console Release, capture all 250 Pokemon (including Celebi, not including Mew)
Obtain the Diploma from the Game Freak director in Celadon City -- If completed on a GameBoy Color and a GameBoy Printer is available, this diploma may be printed.
Obtain all 26 different Unown Forms
A, B, C, D, E, F, G, H, I, J, K - unlocked by completing the northeastern puzzle chamber
L, M, N, O, P, Q, R - unlocked by completing the southwestern puzzle chamber
S, T, U, V, W - unlocked by completing the southeastern puzzle chamber
X, Y, Z - unlocked by completing the northwestern puzzle chamber
Bonus: Transfer Mew - Event Pokemon not currently available through standard gameplay. Mew may be glitched into Red, Blue, or Yellow Versions by following these instructions: bit.ly/RedBlueMewGlitch. Be careful when performing glitches as the save file may become corrupted.
Bonus: Celebi - Event Pokemon not obtainable from standard gameplay. Celebi may be glitched into the game by following these instructions: bit.ly/CelebiEggGlitch. Be careful when performing glitches as the save file may become corrupted. Not necessary in the 3DS Virtual Console release.
Restore power to the Kanto Region - Go to the Power Plant on Route 9 and talk to the large man. Go to Cerulean City and attempt to enter the gym. Follow the suspicious Rocket Grunt that exits the gym north to Route 24, then battle and defeat him. Return to the Cerulean City gym and locate the Machine Part in the northwest tile of a small square pool. Return the part to the large man in the Power Plant.
Obtain the Radio EXP Card for the PokeGear to access Kanto Radio and the PokeFlute Station - receive in the Radio Tower in Lavender Town after restoring power to the Power Plant
Obtain the Magnet Pass - Complete the Power Plant sidequest first. Go to Saffron City and talk to the Copycat Girl in her house on the west side. She will mention losing a Poke Doll. Go to Vermilion City and receive the lost Poke Doll from a member inside the Pokemon Fan Club. Return to the Copycat Girl and receive the Magnet Pass.
Obtain the Focus Band in the Fighting Dojo in Saffron City, located between two statues in the back.
Obtain all 16 Gym Badges
Talk to Professor Oak to obtain access to Mt. Silver
Defeat Red at the top of Mt. Silver
Collectibles and Gifts
Obtain all TMs - see this checklist: bit.ly/GoldSilverCrystalTMs
Obtain all In-Game Gift Pokemon
Togepi - Hatched from the Egg received in the Violet City Pokemon Center after defeating the first gym
Spearow - Obtained in the Route 35 South Guardhouse from the guard behind the counter. Carrying mail intended to be delivered to a man on Route 31. The Spearow may be kept the sidequest is never completed or if the mail is given to another Pokemon and that Pokemon is given to the man on Route 31.
Eevee - Obtained from Bill in his house in Goldenrod City after first meeting him in the Ecruteak City Pokemon Center.
Shuckle - Obtained from a man in his house in Cianwood City to be held for a temporary amount of time. The Pokemon is not required to be returned, however.
Dratini - Obtained from the monk that tests the player in the Dragon\'s Den after defeating Clair in the Blackthorn City gym. The Dratini will know the move "Extremespeed" when stating that Pokemon are "friends" and not "tools."
Tyrogue - Obtained from the Karate King in Mt. Mortar B1F after defeating him in battle. Must have 5 or less Pokemon in the Party, requires Waterfall to reach him.
Odd Egg - Obtained from the Day Care Man south of Goldenrod City. May hatch into one of these Pokemon: Pichu, Cleffa, Igglybuff, Tyrogue, Smoochum, Elekid, or Magby. Has a 14% chance of being shiny and knows the move "Dizzy Punch."
Complete all In-Game Trades
Trade a Bellsprout to a boy inside a house in Violet City to receive an Onix (holds a "Bitter Berry")
Trade an Abra to a man inside the Goldenrod City Department Store to receive a Machop (holds a "Gold Berry")
Trade a Krabby to a man inside his house in Olivine City to receive a Voltorb (holds a "PRZCureBerry")
Trade a female Dragonair to a woman inside their house in Blackthorn City to receive a Dodrio (holds a "Smoke Ball")
Trade a Haunter to a man in the Pewter City Pokemon Center to receive a Xatu (holds a "MysteryBerry")
Trade a Dugtrio to a man in the Power Plant to receive a Magneton (holds a "Metal Coat")
Trade a Chansey to a woman in the Route 14 tall grass to receive an Aerodactyl (holds a "Gold Berry")