Shiny Celebi trick (party method)
The Shiny Celebi trick is an adaption of the bad clone glitch discovered by Paco81 for obtaining a stable Shiny Celebi in Pokémon Gold, Silver and Crystal, put together by gia and originally documented in a three-part 2009 video.
It allows the player to obtain a Shiny Celebi by using a Pokémon that has exactly 251 happiness, a "wall" (a Pokémon with 255 happiness to block corruptions beyond it) and a "donor" which will give specific DVs to the end result based on its species and held item (such as Growlithe; 3A holding a Polkadot Bow; AA).
This trick is an elaborate byte shift exploit, where depositing a Pokémon above the future Celebi causes data to shift up one byte.
1) Get bad clone ready in the storage box. To get one you should deposit more Pokémon than you have ever deposited in a box (and at least 5 or so), then change boxes and reset the game shortly after the Yes/No box disappears (Gold/Silver) or after SAVING... DON'T TURN OFF THE POWER. is fully printed (Crystal). Getting a bad clone is normally difficult but Pokémon Stadium 2's Game Boy Tower makes it a lot easier if you reset the game after the "Saving..." message appears at one of the aforementioned moments.
2) Catch Rattata ("CELEBI" or nickname you choose for Celebi) in Friend Ball.
3) Put "CELEBI" to sleep with Drowzee's Hypnosis on Route 34.
4) Give "CELEBI" 28 vitamins (e.g. 10 Protein, 10 Iron, 8 Carbos), a Heal Powder and three more vitamins to give it 251 happiness (should be done just before withdrawing over 7 Pokémon begins).
5) Catch another Pokémon in a Friend Ball for it to have 200 happiness and max out its happiness to 255 with 28 vitamins, call it "wall".
6) Catch a Growlithe and give it Polkadot Bow, call it "donor". (These are for the DVs 3A, AA; which enable Shininess).
7) Your Trainer ID must not have a FF value when converted into hexadecimal from decimal. You can convert it using Windows Calculator. Furthermore, there must be no Pokémon with DVs of Attack/Defense DVs or Speed/Special DVs of 15, 15 (hex:FF) or any other FF value.
Bulk of the glitch
Step 1: The party should be ordered as followed: Bad clone, donor, wall, victim, CELEBI, victim.
Step 2: Add Pokémon to top of party with move w/o mail (nicknamed and referred to in this guide as "GOLD").
Step 3: The party should be ordered as followed: 'GOLD', victim, 'CELEBI', donor, wall, bad clone, victim.
Step 4: Deposit top Pokémon x2, with donor as last Pokémon deposited (basically three deposits).
Step 5: Use move PkMn w/o mail to move wall above CELEBI.
Step 6: Three Pokémon to the top with move w/o mail (corrupted name, two Pokémon, wall, CELEBI, cancel).
Step 7: Select CELEBI and move with wall with move w/o mail (don't select wall) so that CELEBI above wall.
Step 8: With CELEBI in front (Poké 4), deposit three times again.
Step 9: Use move PkMn w/o mail to swap CELEBI with wall (line directly above cancel).
Step 10: Add three Pokémon to the top of the party using move w/o mail.
Step 11: Swap CELEBI one spot above wall.
Step 12: Deposit top three Pokémon.
Step 13: Move CELEBI with wall (move w/o mail).
Step 14: Move 3 Pokémon in at top.
Step 15: Move CELEBI with wall.
Step 16: Deposit top three Pokémon.
Step 17: Move CELEBI with wall (move w/o mail).
Step 18: Move 3 Pokémon in at top.
Step 19: Move CELEBI with wall.
Step 20: Deposit top three Pokémon.
Step 21: Move CELEBI with wall.
Step 22: Move 3 Pokémon in at top.
Step 23: Move CELEBI with wall.
Step 24: Deposit top three Pokémon.
Step 25: Move CELEBI with wall (move w/o mail).
Step 26: Move 3 Pokémon in at top.
Step 27: Move CELEBI with wall.
Step 28: Deposit top three Pokémon.
Step 29: Move CELEBI with wall.
Step 30: Move 3 Pokémon in at top.
Step 31: Move CELEBI with wall.
Step 32: Deposit top three Pokémon.
Step 33: Move CELEBI with wall.
Step 34: Move 3 Pokémon in at top.
Step 35: Move CELEBI with wall.
Step 36: Deposit top three Pokémon.
Step 37: Take CELEBI into the Day Care and out and it will become a Shiny Celebi.
Why the donor works for making a Pokémon Shiny
In Generation II a Pokémon's Shininess is determined by its DVs. The byte 3A in the donor means an Attack DV of 3 and a Defense DV of 10. The byte AA means Speed and Special DVs of 10. These DVs are that of a Shiny Pokémon (a Shiny must have 10 Defense, Speed and Special DVs as well as 2, 3, 6, 7, 10, 11, 14, or 15 Attack DVs). Hence for maximum DVs on the future Shiny Pokémon a Ho-Oh (hex: FA) holding a Polkadot Bow could theoretically be used as the donor instead.
- https://www.youtube.com/watch?v=BnSEbS2vk-4 - Part 1
- https://www.youtube.com/watch?v=y5U4BoAy-gg - Part 2
- https://www.youtube.com/watch?v=YId1oDlUAzI - Part 3