Crystal Challenge Patch: Difference between revisions

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= Challenge Run Patch =
= 16-Bit Challenge Run Patch =
'''Latest update: 19th May 2025 (v1.14 Beta)'''
'''Latest update: 8th July 2026 (v0.3)'''


This patch enhances Pokémon Crystal for challenge run playthroughs, adding a wide range of quality-of-life options. It is regularly updated based on community feedback.
This patch combines all the pre-existing Pokémon Crystal Patches for Challenge Run and Nuzlocke playthroughs, adding a wide range of quality-of-life options. It is regularly updated based on community feedback.
 
This patch is a [https://github.com/fellowship-of-the-roms/pokecrystal16 16-bit conversion] of Pokémon Crystal and is in early development, there will be bugs. I do not know what the bugs will be yet!


== Download ==
== Download ==
[https://trainersquidgy.com/Patches/GamePatches/Crystal/ChallengeRunPatch.ips Click here to download the latest stable version]
[https://trainersquidgy.com/Patches/AIOPatches/CrystalChallengePatch0.3.ips Click here to download version 0.3]
 
[https://trainersquidgy.com/Patches/GamePatches/Crystal/ChallengeRunPatchBeta.ips Click here to download the latest beta version]


<small>If you are using this patch to create content, please give credit.</small>
<small>If you are using this patch to create content, please give credit.</small>


== Features by Version ==
== Features by Version ==
=== v1.14 Beta ===
=== v0.3 ===
* A reorganized EXTRA OPTIONS function in Elm's Lab, with skips to cut down on the amount of text you scroll through.
* Replace direct item ID comparisons with GetItemIndexFromID/GetItemIDFromHL helper functions in battle, item effects, and move_mon code
* An optional Level Cap which will prevent leveling up past the next Gym Leader / Elite Four Member's Ace. (Disabled by default)
* Update StatExpItemPointerOffsets to use dwb (double word byte) format for 16-bit item indices
* An option to enable and disable extra NPCs - the helpers on 2F Pokémon Center, Move Reminder. (Enabled by default)
* Add ItemSwitch_AdvanceToQuantity helper for proper quantity field access with 16-bit item support
* An option to receive 10 Rare Candies at the start of the game instead of collecting them individually as the game progresses. (Disabled by default)
* Extend wSwitchItemBuffer from 2 to 3 bytes to accommodate larger item IDs
* An option to receive an infinite-use Candy Jar to replace the Rare Candies. (Disabled by default)
* Update garbage collection to check additional item-related WRAM variables
* A helpful NPC in ECRUTEAK and SAFFRON Pokémon Centers who will guide you to Rare Candies you have not obtained.
* Reorganize ROM bank layout ($75/$76) for new 16-bit ID data structures
* BOARDER DOUGLAS in MAHOGANY GYM is now hard-coded to always face upwards when Spinners are disabled.
* Fix item search logic in debug room to handle high/low bytes of 16-bit IDs
 
=== v1.13 ===
* New title screen to indicate it's the Challenge Run Patch.
 
=== v1.12 ===
* Added new area to Mahogany Mart which opens up after clearing the Rockets in Radio Tower. The new Mart sells all 50 TMs. This area isn't intended to be used on a timed run, but can be used to obtain renewable TMs if required.
 
=== v1.11 ===
* Added option to enable Metronome-only mode.
* Added more Mega sprites for Pokémon capable of MEGA EVOLVING.
 
=== v1.10 ===
* Added option to change Spinners into Rotators.
* Added option to receive '''PROF’S REPEL''' — an item that toggles Wild Encounters Off and On.
 
=== v1.9 ===
* 1/8192 chance for the Red Gyarados to appear as a regular Gyarados.
* Inverse Battles re-added.
 
=== v1.7 ===
* Option for Legends: Arceus–style Hidden Power — always rolls for a Super Effective type regardless of DVs.
* Mega Evolution option added — fully functional, though some sprites are still placeholder.
 
=== v1.5 ===
* Failsafe added for evolutions that were not triggering correctly.
* Player now turns to face the camera after setting options in Elm’s Lab.


=== v1.4 ===
=== v0.2 ===
* Customize Hidden Power more precisely and choose from:
* All Generation 3 Pokémon backported.
** Top
* Change in item handling - now running on the 16-bit base for item handling to allow more backports.
** Hi-Middle
* Could potentially be unstable.
** Lo-Middle
** Bottom DVs
* Top & Hi-Middle = Hidden Power 70; Lo-Middle & Bottom = Hidden Power 50.


=== v1.3 ===
=== v0.1 ===
* Fixed: Incorrect Dex number display.
* Options menu located in Elm's Lab, accessed via the top of the far-left bookshelf.
* Fixed: Poké Ball not disappearing with Random Starters.
* Challenge Run Mode, 4 Moves Mode, SuperMON Mode, Nuzlocke Mode, Giftlocke Mode, and Extra Modes are available via the options.
* Route 34 signpost resets Abra encounters when interacted with.


=== v1.2 ===
=== Accessing the Options Menu ===
* NPC added to Pokémon Center 2F who changes in-game time and day.
<gallery>
* Fixed: Night encounter bug on Route 34.
File:OptionsMenu1.png | Talk to this bookshelf before getting your Pokémon
File:OptionsMenu2.png | Set your options in the menu!
</gallery>
<br clear="all">


=== v1.1 ===
== Full Options List ==
* Randomize Starters via the mouse on Elm’s desk.
* Quick Game Mode Options
* Option to hide starter identities in Poké Balls for added mystery.
* HM Items
* Rival can carry randomized starter throughout the game.
* Helpful NPCs
** Evolves normally or at Lv30 for stone/trade evolutions.
* Wild Encounters: On/Off/B to Repel
* Rare Candies: On/10 Immediately/Candy Jar
* Spinners: On/Off/Avoid
* Force Starter DVs: On/Off
* HP Types: All Hidden Power Types
* DV Range: Tweak DV Range Values
* Elm's Lab Poké Ball Pic Preview: On/Off
* Catching: On/Off
* Gym Gifts: On/Off
* Forced HM Encounters: On/Off
* Forced Catching Types: On/Off
* Randomize Wild Pokémon: On/Off (Work in Progress)
* Randomize Trainer Pokémon: On/Off (Work in Progress)
* Randomize Moves (Coming Soon)
* Metronome Only
* Forced Reset Upon Blackout (Work in Progress)
* Abilities (Coming Soon)
* Megas (Coming Soon)
* Evolutions: On/Off
* Trainer Vision: Sight / Talk


=== v1.0 ===
== Backported Pokémon List ==
* Swap Starter Pokémon in any of the three Poké Balls.
* All Generation 3 Pokémon - Treecko -> Deoxys, along with level-up and TM moves; slowly introducing compatibility for Egg Moves and Gen 1 TM moves for the 4 Moves Challenge.
* Set your desired Hidden Power type in-game.
* Guarantee specific encounters:
** Paras & Psyduck in Ilex Forest
** Abra on Route 34
** HM Friends catch instantly on first ball if enabled.
* Disable evolutions for your team.
* Rival carries your opposing starter throughout the story.
* Move Reminder added to Blackthorn City (in Move Deleter’s house).
* Gen 1 TM & Egg Move Tutors on 2F of all Pokémon Centers.
* Trade Evolutions now work via Linking Cord (found in Mahogany Mart after defeating Team Rocket).

Latest revision as of 06:30, 8 July 2026

16-Bit Challenge Run Patch

Latest update: 8th July 2026 (v0.3)

This patch combines all the pre-existing Pokémon Crystal Patches for Challenge Run and Nuzlocke playthroughs, adding a wide range of quality-of-life options. It is regularly updated based on community feedback.

This patch is a 16-bit conversion of Pokémon Crystal and is in early development, there will be bugs. I do not know what the bugs will be yet!

Download

Click here to download version 0.3

If you are using this patch to create content, please give credit.

Features by Version

v0.3

  • Replace direct item ID comparisons with GetItemIndexFromID/GetItemIDFromHL helper functions in battle, item effects, and move_mon code
  • Update StatExpItemPointerOffsets to use dwb (double word byte) format for 16-bit item indices
  • Add ItemSwitch_AdvanceToQuantity helper for proper quantity field access with 16-bit item support
  • Extend wSwitchItemBuffer from 2 to 3 bytes to accommodate larger item IDs
  • Update garbage collection to check additional item-related WRAM variables
  • Reorganize ROM bank layout ($75/$76) for new 16-bit ID data structures
  • Fix item search logic in debug room to handle high/low bytes of 16-bit IDs

v0.2

  • All Generation 3 Pokémon backported.
  • Change in item handling - now running on the 16-bit base for item handling to allow more backports.
  • Could potentially be unstable.

v0.1

  • Options menu located in Elm's Lab, accessed via the top of the far-left bookshelf.
  • Challenge Run Mode, 4 Moves Mode, SuperMON Mode, Nuzlocke Mode, Giftlocke Mode, and Extra Modes are available via the options.

Accessing the Options Menu

  • Talk to this bookshelf before getting your Pokémon
    Talk to this bookshelf before getting your Pokémon
  • Set your options in the menu!
    Set your options in the menu!


Full Options List

  • Quick Game Mode Options
  • HM Items
  • Helpful NPCs
  • Wild Encounters: On/Off/B to Repel
  • Rare Candies: On/10 Immediately/Candy Jar
  • Spinners: On/Off/Avoid
  • Force Starter DVs: On/Off
  • HP Types: All Hidden Power Types
  • DV Range: Tweak DV Range Values
  • Elm's Lab Poké Ball Pic Preview: On/Off
  • Catching: On/Off
  • Gym Gifts: On/Off
  • Forced HM Encounters: On/Off
  • Forced Catching Types: On/Off
  • Randomize Wild Pokémon: On/Off (Work in Progress)
  • Randomize Trainer Pokémon: On/Off (Work in Progress)
  • Randomize Moves (Coming Soon)
  • Metronome Only
  • Forced Reset Upon Blackout (Work in Progress)
  • Abilities (Coming Soon)
  • Megas (Coming Soon)
  • Evolutions: On/Off
  • Trainer Vision: Sight / Talk

Backported Pokémon List

  • All Generation 3 Pokémon - Treecko -> Deoxys, along with level-up and TM moves; slowly introducing compatibility for Egg Moves and Gen 1 TM moves for the 4 Moves Challenge.
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