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As you probably know, some in-game events are unlocked if you go to a specific place while having a specific Pokémon on you or in the first party slot. What I want is a complete list of those events.

I'm mainly interested in events unlocking other Pokémon (such as the Sinjoh ruins event) and less in events unlocking items (such as the Gracidea event) or Formes (such as the Deoxys meteorites).

I know of the following:

  1. Arceus unlocks the Sinjoh ruins event in HG/SS. (any one, Movie and Azure Flute can unlock it once each) -> lets you pick Dialga, Palkia or Giratina.
  2. Celebi (Movie) unlocks Zorua event in B/W.
  3. Raikou, Entei or Suicune (Movie, shiny) unlocks Zoroark event in B/W.
  4. Regigigas (not sure where it's from, but it's Lv.100) unlocks Regi shrines in Platinum.
  5. Regice, Regirock and Registeel unlock that shrine where you can get Regigigas in D/P/Pt.
  6. Kyogre and Groudon (caught in HG or SS, respectively) unlock Rayquaza at the same location where the respective former Pokémon was found in HG/SS.

So, are there any more of these in Gen III+?

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I believe this question is too broad when you have it covering multiple generations, especially when you consider that each generation tends to have multiple sets of games in it. I'd suggest asking a separate question for each generation to narrow your scope. –  Wipqozn Feb 6 at 12:37
While each generations has multiple games, those events are usually comsistent across games and quite rare. From my previous searching on google and many fan sites, the ones listed above are the only ones I could find and I don't think there are many more. Also, I believe this is pretty specific in its scope. I might just be missing 2 or 3 of those, and I'm hoping to get a complete list of all those special events. The reason, by the way, is to know which Pokémon I can transfer to newer generations without losing out on the chance to get one of these in-game events. –  scenia Feb 6 at 12:48
If this was a specific question about ONE specific gen, I think it should be fine. but ... –  Michel Feb 6 at 13:33
I don't see how this is too broad. We're talking about something so very specific that it exists roughly twice in each generation. A seperate question for each generation makes no sense in this case. See the accepted answer, which covers exactly what I was asking and is, so I think, complete. If the question was too broad, that answer would be much, much bigger (or incomplete). Also, the question for Gen III would probably have no answer since apparently this kind of in-game events wasn't present there. Not every question spanning multiple generations is too broad by default... –  scenia Feb 6 at 13:45
After having a conversation with LessPop in chat, in addition to the answer showing the scope, I've decided to reconsider my close vote and have thus voted to re-open. I was under the impression that there were 5-6 of these events per game, but it appears I was just remembering incorrectly. –  Wipqozn Feb 6 at 13:48
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2 Answers

up vote 5 down vote accepted

You already mentioned a few, and I'll be including these in my answer just for completeness and I'm pretty sure it's complete.


  • Regigigas

    Unlocked on Snowpoint Temple (Lv 70).

    Requirement: have Regirock, Regice and Registeel in your party.


  • Regirock, Regice, Registeel

    Unlocked on Rock Peak Ruins (Route 228), Iceberg Ruins (Mt. Coronet, Route 216 near the exit) and Iron Ruins (Iron Island) respectively after obtaining the movie Regigigas.

    Requirement: have the movie Regigigas in your party.

  • Regigigas

    Unlocked on Snowpoint Temple (Lv 1).

    Requirement: have Regirock, Regice and Registeel in your party.


  • Spiky-eared Pichu

    Unlocked in Ilex Forest's shrine.

    Requirement: have the Pikachu-coloured Pichu first in your party.

  • Rayquaza (if that counts)

    Unlocked in Embedded Tower

    Requirement: get the Jade Orb from Oak by showing him a Kyogre and a Groudon from HeartGold and SoulSilver respectively.

  • Dialga, Palkia or Giratina

    Unlocked in Sinjoh Ruins.

    Requirement: have an event Arceus walking alongside you.

Black and White

  • Zorua

    Unlocked in Game Freak building in Castelia City.

    Requirement: obtained an event obtained Celebi from a Gen IV game through PokeTransfer or Relocator.

  • Zoroark

    Unlocked in Lostlorn Forest.

    Requirement: have an event shiny beast (Entei, Raikou or Suicune) from a Gen IV game through PokeTransfer or Relocator in the party.

  • Terrakion and Virizion (similar to Rayquaza)

    Unlocked in Trial Chamber (Victory Road) and Rumination Field (Pinwheel Forest).

    Requirement: have captured Cobalion.

  • Landorus

    Unlocked in Abundant Shrine

    Requirement: have both Thundurus and Tornadus in party.

Black 2 and White 2

  • Regice and Registeel

    Unlocked in Underground Ruins.

    Requirement for Regice: Have captured Regirock and have the Iceberg Key
    Requirement for Registeel: Have captured Regirock and have the Iron Key

  • Regigigas

    Unlocked in Twist Mountain

    Requirement: have Regirock, Regice and Registeel in party

And there are none that I know of from Pokemon X and Y which has a condition of 'get such or such Pokemon to unlock such Pokemon' (of course, Pokemon obtained through the choice of a player, for instance those which depend on the starter picked, is not considered here as such events).

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Awesome, this is just what I was looking for. Regirock can be captured in B2/W2 without any requirements, I suppose? –  scenia Feb 6 at 13:40
@scenia Yup. That's why it's not up there. –  Jerry Feb 6 at 13:41
Isn't the Regigigas in Snowpoint Temple also available in Platinum? The way you wrote it, it looks like it's not... –  scenia Feb 7 at 10:36
@scenia Oh, yes, that's right. I guess I got sidetracked after applying some headers and separators. –  Jerry Feb 7 at 11:59
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In addition to Jerry's list in B/W Keldeo will learn the move secret sword if taken to the Moor of Icirrus along with: Cobalion, Virizion and Terrakion

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That doesn't really count as "unlocking other Pokémon", now does it? –  scenia Apr 15 at 13:21
the question is about in-game events not just pokemon –  IG_42 2 days ago
"Mainly interested in Pokémon, less in the others" means you can include the others if you're writing an answer containing the Pokémon already, but it doesn't warrant its own answer. –  scenia 2 days ago
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