Advertiser Content
Male
Seen 2 Weeks Ago
Posted May 9th, 2019
29 posts
8.2 Years
When Pokemon Crystal was released, it was the ultimate experience of classic Game Boy/Game Boy Color Pokemon. Now this classic can be played the way it always should have been!

The goal of this hack has been to make an idealized definitive version of Pokemon Crystal that has every Pokemon available to catch and to fix a number of glaring glitches that hampered the original game.

Only minor changes have been made, see below for details:

Version 1.0 (28/01/2018):
  • All 251 Pokemon catchable.
  • Pokemon that normally evolve with trades, evolve through the use of stones.
  • Stones and items that could only be obtained through Mystery Gift available at department stores.
  • The GS Ball and Celebi event can be triggered after Mount Silver has been unlocked.
  • Fixed a bunch of glitches such as the problems with some of Kurt’s balls and several items.
  • Increased opponents levels to match HGSS (Except Red who has Level 100 Pokemon just for fun, he is supposed to be the best trainer in the world after all). This is mainly noticeable in late Johto and Kanto.
  • Made all Gym Leaders rematchable. Just talk to them again and they will ask for a rematch.
  • Removed the badge boosts and the extra chances the AI has to miss on status moves to create parity between the player and the AI.
  • Ho-Oh and Lugia have their signature moves when you encounter them.
  • Reuseable TM’s.
  • Hold down B to run.
  • Restored Japanese sprites for the Beauty, Sage, Medium, female Swimmer and Fisherman.
  • Simplified the clock reset procedure on the intro screen. Simply hold down “Down”, “B” and “Select”. No need to enter in a password.

Update (29/01/2018):
  • Restored the original Japanese sprite for Jynx.

Update (08/02/2018):
  • Tiny adjustment to a single trainer's Pokemon levels that was missed.

Update (25/06/2018):
  • The readme file has been updated with the secret locations for the legendary birds and Mew at the bottom of the document. (Keep scrolling)

Update (18/02/2019):
  • Moved the 3 legendary birds to more logical locations around Johto and Kanto.

Update (24/02/2019):
  • Fixed a bunch more glitches such as the Magikarp length bug, Light Ball bug and the Belly Drum glitch.

Update (01/03/2019):
  • Adjusted the levels of the 3 legendary birds to have a more appropriate move set when you encounter them.
  • Made all but one of the unobtainable decorations unlock upon defeating the Elite 4.
  • Made the Gold Trophy unlock upon defeating Red.

Update (21/03/2019):
  • Cleaned up the entrance to Cerulean Cave by extending the ledge on Route 4 over the water. This avoids a bug where your sprite disappears when you start surfing off the ledge.
  • Cleaned up the added dialogue by replacing instances of ". . ." with "…" to match the rest of the game.

Update (05/04/2019):
  • Cleaned up some minor grammar mistakes in the dialogue.

The readme file includes a list of changed encounters and evolutions.

The attached IPS works with Pokemon - Crystal Version (UE) (V1.1) [C][!] MD5: 301899B8087289A6436B0A241FBBB474 and the patched rom should have a checksum of c448.

You can also download the hack here.

You can also access it on Github Here.


Encounters and Evolutions:

Spoiler:

~~Encounters Added to Make Every Pokemon Obtainable~~

Vulpix can be encountered at Route 36, 37 during the morning and day

Mankey can be encountered at Route 42 and 9 during the morning and day

Mareep can be encountered at Route 32 during the morning and day

Girafarig has a 1% chance of encounter at Route 43 in the morning and day

Remoraid has a 30% chance of encounter in the water at Route 41

Chikorita has a 1% chance of encounter at Route 31 in the morning

Cyndaquil has a 1% chance of encounter in Dark cave (Violet city entrance) at night

Totodile has a 1% chance of encounter at Whirl Islands B2F in the morning

Bulbasaur has a 1% chance of encounter in Ilex Forest in the morning

Charmander has a 1% chance of encounter at Burned Tower B1F at night

Squirtle has a 1% chance of encounter at Whirl Islands B2F at night

Omanyte and Kabuto can be encountered at the Whirl Islands in Lugia's Chamber (not in the water) at night

Zapdos has a 1% chance of encounter at a secret location in the day (See the bottom of the document to reveal location)

Moltres has a 1% chance of encounter at a secret location in the morning (See the bottom of the document to reveal location)

Articuno has a 1% chance of encounter at a secret location at night (See the bottom of the document to reveal location)

Mewtwo is avaliable in a restored Cerulean Cave

Mew has a 1% chance of encounter at a secret location at a secret time of day (See the bottom of the document to reveal location)


~~Encounters Changed to Bring Johto Pokemon Previously Only Obtainable in Kanto to Johto and Add Some Small Variety~~

Houndour has been added to Route 36 and 37 to be encountered at night

Murkrow has been added to Route 38 to be encountered at night

Slugma has been added to Burned Tower B1F to be encountered during the day

Natu has been added to Tin Tower 2F to be encountered during the day

Xatu has been added to Tin Tower 2F to be encountered during the day and night

The encounters at Mount Silver have been given a slight level boost

The encounters in Cerulean Cave are a surprise


~~Evolutions~~

Haunter evolves into Gengar with a Moon Stone

Machoke evolves into Machamp with a Sun Stone

Graveler evolves into Golem with a Sun Stone

Kadabra evolves into Alakazam with a Moon Stone

Seadra evolves into Kingdra with a Water Stone

Onix evolves into Steelix with a Sun Stone

Scyther evolves into Scizor with a Leaf Stone

Slowpoke evolves into Slowking with a Water Stone

Poliwhirl evolves into Politoed with a Moon Stone

Porygon evolves into Porygon2 with a Thunderstone


































~~Secret Locations~~

Articuno is in the Ice Path B3F.

Zapdos is at Route 10, outside the powerplant.

Moltres is in Mount Silver room 2.

Mew is at the summit of Mount Silver (where Red is) during the morning. I imagine that Red is up there looking for a Mew.


Credits:
  • The great work of the Pokemon Crystal Disassembly Project.
  • Crystal__ and Rangi For helping me work out how to delete the extra chances the AI has to miss on status moves.
  • Maniac379's Pokemon White Crystal provided the code for Cerulean Cave and the Original Japanese sprites.
Male
Seen 2 Weeks Ago
Posted May 9th, 2019
29 posts
8.2 Years
how long is the current build?
The full game from New Bark Town to Red. Most of the changes I made were relatively minor so it is still mostly akin to normal Crystal except for trainer levels later in the game, the fact that all Pokemon are obtainable, a few glitches fixed and a few other minor things. I kind of see this as my personal ideal version of Pokemon Crystal.

looneyman1

The Psycho Pokemon

Male
Seen 4 Hours Ago
Posted 2 Weeks Ago
959 posts
5.7 Years
not bad, surprised its a complete version already. Not often that happens.

It would be nice to have a expanded battle tower to be more like the battle fronteir but thats up to you

EDIT: Is there a phys/spec plit like gen 4? I dont see any indication of it and that worries me a bit due to a lot of pokemon becoming useless as a result.
Male
Seen 2 Weeks Ago
Posted May 9th, 2019
29 posts
8.2 Years
EDIT: Is there a phys/spec plit like gen 4? I dont see any indication of it and that worries me a bit due to a lot of pokemon becoming useless as a result.
No, its the same as ordinary Crystal in this respect. I thought about it but decided to keep the moves the same as I remember back when I was a kid.

Are any pokemon moved around and made more available? Like hondour/murkrow and the like not available in Johto?
Houndour has been added to Route 36 and 37 to be encountered at night

Murkrow has been added to Route 38 to be encountered at night

Slugma has been added to Burned Tower B1F to be encountered during the day

looneyman1

The Psycho Pokemon

Male
Seen 4 Hours Ago
Posted 2 Weeks Ago
959 posts
5.7 Years
Hmm, isn't this what Polished Crystal pretty much already is cept with far less of the new features and maps and such that hack will have? Unless its intended to stay mostly faithful to the original game outside the whole "251 hack" thing. Only curious is all.
yeah its ment to be more faithful to the original which makes a lot of sense in a way due to the recent re-release of crystal for the 3DS virtual console.

I will miss the spec/phys split however, and it'll hurt to miss out on sludge bomb on a venusaur.
Male
Seen 2 Weeks Ago
Posted May 9th, 2019
29 posts
8.2 Years
Hmm, isn't this what Polished Crystal pretty much already is cept with far less of the new features and maps and such that hack will have? Unless its intended to stay mostly faithful to the original game outside the whole "251 hack" thing. Only curious is all.
Yea. Its definitely not trying to do the same thing as Polished Crystal. I guess you could say that I tried to make Vanilla Crystal a complete game without changing too much.

Da Man

The One and Only

Male
Surrey, England
Seen 6 Hours Ago
Posted 2 Weeks Ago
337 posts
11.4 Years
Yea. Its definitely not trying to do the same thing as Polished Crystal. I guess you could say that I tried to make Vanilla Crystal a complete game without changing too much.
Alright that's understandable, might try this one day then since it sounds promising,
Male
Seen 2 Weeks Ago
Posted May 9th, 2019
29 posts
8.2 Years
Are there any new maps or features added in that were either removed or missing from the original Crystal?
Only Cerulean Cave, I couldn't bare putting Mewtwo anywhere else. It has a guard that disappears when you have all 8 Kanto badges and unlock Mount Silver just like in Gen 1.
Seen May 1st, 2018
Posted February 18th, 2018
2 posts
2.1 Years
I'd recommend a few things:

- 251 Pokémon obtainable in game
- Restored maps from R/B/Y (Viridian Forest, Pewter Museum, Seafoam Islands, Safari Zone)
- Move Re-learner
- A more balanced difficulty (using HG/SS as a base for stats possibly, improving more mid to late game trainers in Johto and Kanto)
- Gym Leader rematch in Fighting Dojo in Saffron (battle any leader, any time of day, all day)
- Round 2 Pokémon League with levels matching or similar to HG/SS)

These are the features I would like to see in any Crystal hack. Good luck on your hack, I'm just suggesting things that are nice to have in these games. :)

Da Man

The One and Only

Male
Surrey, England
Seen 6 Hours Ago
Posted 2 Weeks Ago
337 posts
11.4 Years
I'd recommend a few things:

- 251 Pokémon obtainable in game
- Restored maps from R/B/Y (Viridian Forest, Pewter Museum, Seafoam Islands, Safari Zone)
- Move Re-learner
- A more balanced difficulty (using HG/SS as a base for stats possibly, improving more mid to late game trainers in Johto and Kanto)
- Gym Leader rematch in Fighting Dojo in Saffron (battle any leader, any time of day, all day)
- Round 2 Pokémon League with levels matching or similar to HG/SS)

These are the features I would like to see in any Crystal hack. Good luck on your hack, I'm just suggesting things that are nice to have in these games. :)
Polished Crystal has most of them, this hack is fine the way it is.
Male
Seen 2 Weeks Ago
Posted May 9th, 2019
29 posts
8.2 Years
I'm interested, have you restored the original Pokécom Center and all of these sprites? https://iimarckus.org/i/changed-designs/
No to the Pokécom Center, without the old mobile phone functions, I didn't really see a point in restoring it.

The "Censored" ones, yes. The rest that were changed for the western release were fixing mistakes and are unchanged.

This is nice. Do you have the github? Would that be something you'd be willing to make it public?
I just downloaded the files onto my P.C. myself and worked from there. I'm not sure I even know how to put them online now. I am sure I could probably work it out.
Male
Seen 2 Weeks Ago
Posted May 9th, 2019
29 posts
8.2 Years
@SuperEgz looks great matee, anyways how did you put RED's pokemon to Level 100!? can you tell the address HEX code if you don't mind!?
I just edited the trainer file on the disassembly, This is what Red's code looks like:

RedGroup:
; ================================
; ================

	; RED (1)
	db "RED@"
	db 3 ; moves

	; party

	db 100, PIKACHU, LIGHT_BALL
		db CHARM
		db QUICK_ATTACK
		db THUNDERBOLT
		db THUNDER

	db 100, ESPEON, TWISTEDSPOON
		db MUD_SLAP
		db REFLECT
		db SWIFT
		db PSYCHIC_M

	db 100, SNORLAX, LEFTOVERS
		db AMNESIA
		db SNORE
		db REST
		db BODY_SLAM

	db 100, VENUSAUR, MIRACLE_SEED
		db SUNNY_DAY
		db GIGA_DRAIN
		db SYNTHESIS
		db SOLARBEAM

	db 100, CHARIZARD, CHARCOAL
		db FLAMETHROWER
		db WING_ATTACK
		db SLASH
		db FIRE_SPIN

	db 100, BLASTOISE, MYSTIC_WATER
		db RAIN_DANCE
		db SURF
		db BLIZZARD
		db WHIRLPOOL

	db $ff ; end

; ================
; ================================

Z34guy

Pretty Little Psycho

Male
Seen 2 Weeks Ago
Posted March 17th, 2018
350 posts
10.2 Years
Well, you really opened yourself up for improvement by naming this Perfect Crystal.
So, I'mma let you have it.
I'll ask for an overhaul of the breeding system. What I mean is I would like a way to breed pokemon with the special moves only gotten through giveaway pokemon. For example, the Lovely Kiss Nidoran male, or the Surfing or Flying Pikachus/Pichus
https://bulbapedia.bulbagarden.net/wiki/List_of_Japanese_event_Pok%C3%A9mon_distributions_in_Generation_II
https://bulbapedia.bulbagarden.net/wiki/List_of_Gotta_Catch_%27Em_All_event_Pok%C3%A9mon
"We all know that small cars are good for us. But so is cod liver oil. And jogging."
"Speed has never killed anyone, suddenly becoming stationary... That's what gets you."
-Jeremy Clarkson of "Top Gear" and more recently "The Grand Tour"
"***damn all these women drivers! Take away all their licenses!"
-My sister on days she forgot what gender she was.
Advertiser Content