Pokemon Obsidian Emerald ROM

Pokemon Obsidian Emerald is a GBA ROM Hack by Skolgrahd based on Pokemon Emerald in English. It was last updated on May 26, 2024.

Description

Pokemon Obsidian Emerald Version is a modernized all-doubles challenge hack of Pokemon Emerald Version from developers Skolgrahd and Speaker! This is our first rom hack, and we are truly excited to be able to say we finished what we set out to do: provide a fully playable PvE experience for lovers of VGC and competitive double battles.

Features

• All non-legendary, non-mythical Pokemon through Gen 8 available

• Choose any starter from the first 8 generations

• Updated Gen 9 battle engine with modern abilities, moves, typing, and mega evolution

• GMax forms from Gen 8 are reincorporated as Megas

• Gen 8 TMs and TRs are implemented and available, and can be used more than once

• All Gym Leaders have a unique field effect, heightening the difficulty and giving the feeling that you are challenging the leaders on their home turf

• To challenge a Gym, Pokemon League rules stipulate that the player must have no more Pokemon in their party than the Gym Leader does. No more unfair 6 vs 4 Gym battles!

• The monotony of traveling from town to town has been replaced with grueling gauntlets, forcing you to battle many trainers consecutively to reach your destination

• All the Kanto gym leaders appear in the overworld after Groudon is awoken, offering valuable prizes to those who manage to defeat them

• A hard level cap prevents overleveling and keeps the fights fair

• Retooling and customizing your team is streamlined with exp candies, vitamins, nature mints, ability capsules and ability patches all available early on

• Revamped feathers perfect a Pokemon’s IV in a given stat

• EV berries remove 100 EVs

• IVs and EVs are visible in the summary screen by pressing L and R, respectively (pressing start returns to the default view of the raw stats)

• An optional Minimal Grinding Mode is fully implemented, causing the game to compute Pokemon stats as if they had 0 EVs and perfect IVs

• Moves can be relearned from the party menu! Moves learned at level 1 still need to be relearned with the Fallarbor Move Tutor.

• Field moves like HMs can be used by any Pokemon that can learn them, regardless of whether they actually know the move

• The PokeVial from romhacks past is implemented, allowing healing without returning to the Pokemon Center

• The PC can be accessed from the PokeNav, as long as you’re not in a gauntlet!

• The PokeRadar allows chaining of Pokemon, increasing odds for perfect IVs, hidden abilities, and shinies, as well as applying a ramping exp multiplier for large streaks

• The Exp Share has been modernized and implemented as a toggleable key item

• Many Pokemon have received balance updates, including new types, abilities, base stats and learnsets, with more updates to come in future patches

• Repels have been replaced with a toggleable key item, the PermaRepel

Changelog

V1.4

Systems Updates

• The Gen 5 Summary Screen has arrived! RavePossum worked super hard on this, and had some help too – please see the new Contributers section at the end of this Changelog, which will be updated going forward. Features:
  • IV grades show the innate potential of a Pokémon.
  • EV progress arrows indicate stat gains earned through training.
  • Colored stats indicate the influence of the Pokémon’s nature.
  • The heart icon fills up as the Pokémon gains friendship. It becomes full once the Pokémon reaches the friendship evolution threshold, and becomes golden once its friendship is maxed out.
• The DexNav has arrived! Much thanks to ghoulslash for the vast majority of the underlying code. The DexNav will be made available upon receipt of the Pokédex, and entirely replaces the Poké Radar. Save files that already possess the Poké Radar will not be affected by this change, but you will need to restart your save to obtain the DexNav. The DexNav works as in vanilla Pokémon games, so you can see Bulbapedia’s DexNav page for details! The exception to this is that every 5 chained encounters, your shiny rerolls will increase by one.
• A new Extras Menu can be accessed by pressing L in the overworld! This menu contains useful functions and key items that were just a bit of a pain to dig up. The Extras Menu options are:
  • PokéVial
  • DexNav
  • Access PC
  • TM Case
  • Toggle PermaRepel
• Nuzlocke Mode is now an additional configuration option at game start! Features:
  • Fainted Pokémon cannot be revived in any way or traded to NPCs
  • Only the first encounter on each route is possible to catch
  • Hatching an egg on a route will count as that route’s encounter, and eggs will not hatch on routes which already have encounters
  • If the catchable encounter is a species you have already captured, it will not count as that route’s encounter (Dupes Clause)
  • If an uncatchable encounter is shiny, you will be able to catch it regardless (Shiny Clause)
  • The other conventional Hardcore Nuzlocke rules are already enforced by default in Obsidian Emerald:
    • Hard level caps
    • No bag items in trainer battles
    • Set mode only
• Every trainer in the game now has a fully specified competitive set! See the Master
• Sheet on the documentation for the Poképastes.
• Roxanne, Winona and Juan have had their teams adjusted.
• Some new AI Tweaks have been implemented:
  • The AI is now less likely to use status-inflicting moves when they are not particularly useful
  • The AI will no longer use Tailwind and Trick Room in the same turn
  • The AI will now use Taunt and Imprison more often when it can deny Trick Room or Tailwind setup
  • The AI is now less likely to use stat-increasing moves when at +2 or higher, or if it can take a KO
  • The AI will consider attacking its partner when it is beneficial, for example with guaranteed-to-crit moves when the partner has Anger Point, or with Beat Up when the partner has Justified
• Pushing the B button in wild battles will automatically move the cursor to the Run option.

New Mega Evolutions

• Mega Torterra
  • Type: Grass/Ground
  • Ability: Volcanize – Normal type moves are boosted by 20% and become Fire type.
• Mega Infernape
  • Type: Fire/Fighting
  • Ability: Aerilate – Normal type moves are boosted by 20% and become Flying type.
• Mega Empoleon
  • Type: Water/Steel
  • Ability: Galvanize – Normal type moves are boosted by 20% and become Electric type.

Pokémon Balance

• Lots of Pokemon balances

Move Balance

• Razor Wind: Requires one turn to charge up » Executes the same turn that it is chosen, as most moves do
• Noble Roar: Targets one opponent » both opponents
• Twister: BP 40 » 60

Ability Balance

• Illusion: While Illusion is intact, damage is increased by 30% » not increased (reversion of previous change, since the AI now falls for Illusion).
• Long Reach: Contact moves do not trigger negative effects » Contact moves do not trigger negative effects, and non-contact physical moves receive a 20% damage boost.

Miscellaneous Changes

• The Seashore House is now a gauntlet, and grants 6 » 4 Soda Pops as its prize.
• Defeating the Winstrates will now reward you with a Focus Band » one Elemental Stone of your choice. Talk to Victor to acquire it. You can still get the Macho brace from Victoria as well.
• The final PokéVial charge, given by Scott in the Evergrande Pokémon Center, is no longer missable.
• Ability Patches cost ₽25,000 » ₽20,000
• Nature Mints cost ₽1,000 » ₽500
• All Pokémon can now have their nicknames changed at the Name Rater, even if obtained in a trade.
• The Harbor Mail can now be bought at Slateport’s PokéMart.
• Wild Happiny no longer can hold Oval Stone.

Bug Fixes

• TM Case fixes:
  • Using the TM Case repeatedly in the Pokémon Center should no longer cause a crash (but if it does, please report it!).
  • When using the TM Case, eggs now properly appear as eggs and do not appear to be able to learn TMs.
  • TM Case sprites are properly tinted when a Pokémon cannot learn a move.
  • Attempted a fix for a bug which causes Pokémon to sometimes lose levels (but not exp) during the process of teaching TMs. Because the issue was not reproducible on the devs’ end, this fix may not actually address the bug in all cases, so if you experience it, please report it.
• The level cap of 8 before defeating your rival for the first time is now properly enforced.
• The Lilycove Pokémon Center now has an interactable woman with a pet Pokémon, the specifics of which are determined by the player’s Trainer ID, as in vanilla.
• The Mirror Herb can now be used to transfer Egg Moves to Pokémon that are not first stage evolutions.
• The HP EV training team no longer includes Pokémon that give the wrong EVs.
• The Pokédex+ now correctly indicates when Pokémon learn moves upon evolution.
• The Pokédex+ menu option no longer appears before receiving the Pokédex from Professor Birch.
• Many Pokémon that erroneously learned Hail now learn Snowscape instead.
• Ranger Jackson is no longer skippable in the Route 119 gauntlet.
• Milcery now correctly evolves when using a Sweet on it, like an evolution stone.
• Hisuian Sliggoo is no longer erroneously a possible result from the Hisuian randomized trade in Oldale Town.
• Cloud Nine and Air Lock no longer function during battles with permanent weather field effects.
• Battles in the Lavaridge Town Gym no longer have permanent Misty Terrain.
• The Name Rater no longer sometimes refuses to change a Pokémon’s nickname.
• Basculegion no longer learns Dire Claw on evolution.
• Stealing an item from a Pokémon with Sticky Hold no longer causes an infinite loop.

V1.3.2

Systems Updates

• The party menu layout has been revamped!
• Poké Radar chains confer 0/1/2/3/4/5/6 » 5/10/15/20/25/30/35 shiny rerolls.
• The couple in Oldale Town will no longer trade Hisuian Zorua for Unovan Zorua and Hisuian Growlithe for Mightyena. Now, only one trade is available, and any Pokémon can be traded in return for a random Stage 1 Hisuian Pokémon (Growlithe, Voltorb, Qwilfish, Sneasel, Zorua or Sliggoo).
• Eggs now hatch three times faster than in vanilla.
• In Candy Mode, all bosses and trainers not in gauntlets have their Pokémons’ levels scaled up to a constant slightly below the current level cap » a constant slightly below the current level cap or two less than the player’s highest level Pokémon in party, whichever is lower, but never lower than two less than the previous level cap.
• Items stolen through Thief and similar effects are no longer retained after Trainer battles.
• Briney will no longer sail you to Slateport City before defeating Brawly.
• Defeating your rival in Rustboro now grants an Ability Capsule.
• Updated to pokeemerald-expansion v1.8.2.

Pokémon Changes

• Bisharp – Does not appear in the wild » Appears on Route 123
• Dragapult – Can be taught Shadow Claw.

Bug Fixes

• Your Rival correctly bikes away instead of transforming into Brendan and quickly walking away after being defeated on Route 110.
• A Magma Grunt in the Magma Hideout Gauntlet no longer fails to load a party.
• Quash’s effect has been implemented.
• Armor Tail, Dazzling and Queenly Majesty appropriately protect the partner Pokémon from opposing priority moves.
• The Relearn Move option in the Party Menu now only appears if there is a valid move to be taught.
• The weather on Route 119 no longer ceases after entering a building in the middle of the route and then returning to the route.
• Fixed a bug where obtaining an item would cause some emulators to crash.
• TM18 is no longer free.
• Evolutions of Gen 1-8 Pokémon introduced in Gen 9 now have Pokédex+ entries. If you already have caught one of these Pokémon on your current save, you need to see or obtain them again to add the entry to your Pokédex, and the Pokédex+ party menu selection will still refer you to a blank page until you do so.
• The level cap of 8 enforced before beating your rival on Route 103 now works as intended.

V1.3.1

• fixed the Pokedex+ ordering bug 
• Fixed a potential crash when facing opponents with recovery options (like Norman’s Slaking with Drain Punch).
• fixed a bug where Ability Capsule costs 100,000 and Milcery can evolve via level-up as well as by Sweet.
• Fixed a critical bug that can crash your game when using field moves from the party menu
• The TM Case update removes the TMs pocket from your bag, so you will not be able to see any TMs or HMs until you acquire an item in some way (buying a Poke Ball will work!), at which point the TM Case will be added to your Key Items pocket.