Pokemon Null ROM

Pokemon Null is a heavily modified ROM hack of Pokémon Emerald built from the ground up for the Nuzlocke experience. Every trainer has been hand-crafted, every route rebalanced, and the Pokédex expanded to include Pokémon from Generations 1–9, including brand-new Mega Evolutions. Expect no mercy.

Features

• 275+ Hand-Crafted Competitive Battles: Every single trainer battle has been personally designed with a competitive mindset, featuring synergistic held items and teams that work together to challenge even veteran players.
• Next-Generation Custom AI: Features a brand-new AI system built from the ground up to counter player strategies, predict switches, and play with a professional competitive mindset.
• Generations 1–9 Roster: The Pokédex has been expanded to include Pokémon from all nine generations, featuring updated abilities with new functionality to keep the meta fresh.
• New Mega Evolutions: Includes classic Mega Evolutions plus brand-new Megas for beloved Pokémon, including those inspired by Pokémon Legends: Z-A.
• Reshuffled Hoenn Routing: The standard Hoenn journey is reimagined with a reshuffled gym order, 3 new explorable areas, 10 new boss fights, and various new rivals and characters.
• Hardcore Nuzlocke Balance: Meticulously balanced for the Nuzlocke challenge with tuned encounter tables, resource management, and a difficulty curve where every loss matters.
• In-Menu Pre-Status & Pre-Damage: A revolutionary party menu feature that allows you to instantly apply status conditions or set specific HP levels for strategic play with abilities like Guts or Flail.
• Hard Level Caps: Built-in level caps ensure you never overlevel the next boss, maintaining a consistent and fair challenge throughout the game.
• Resource-Based Customization: Access a dedicated system that allows you to change your Pokémon’s Natures and IVs, allowing you to optimize your team for specific encounters.
• HM-Free Exploration: Use all HM moves directly in the overworld without needing to teach them to your Pokémon or carry “HM Slaves.”
• Infinite Rare Candies & Candy Bag: Completely eliminates level grinding with a dedicated Candy Bag that instantly raises your Pokémon to the current level cap.
• Porta-PC & Toggleable Repel: Access your Pokémon storage boxes from anywhere and manage wild encounters with an infinite, toggleable Repel.
• PokéRider Traversal: Run anywhere and fly to previously known locations instantly using the PokéRider item, replacing the need for Fly.
• Simplified Evolution Methods: Over 50 generational lines have been updated with simplified evolution methods, removing the need for trade-based evolutions.
• Balanced Starter Selection: Start your journey with Chespin, Fennekin, or Froakie, chosen specifically for their balanced viability in a tactical Nuzlocke setting.
• Status Immunity Bypassing: Innovative battle gimmicks allow certain Pokémon to bypass traditional type-based status immunities (e.g., Corrosion Salandit or Soak strategies).
• Casual Mode Toggle
• Legendary Status Rework
• Guaranteed Fishing Pulls
• Dual Bike Access
• Sped-up Traversal
• No Poison Overworld Damage
• Heal from Menu

Changelog

V1.2.4

• Fixed Good as Gold blocking Curse from non Ghost type Pokémon.
• Fixed Dragon Tail’s effect working on Mimikyu with Disguise active.
• Fixed Dark types incorrectly being immune to Struggle from Prankster Pokémon if they had a status move.
• Fixed eject activation (Emergency Exit and Eject items) incorrectly passing the endure effect.
• Fixed Stomping Tantrum not being boosted if the previous move missed because the target was in a semi invulnerable state.
• Fixed Stomping Tantrum remaining boosted for the rest of the battle after activating from a miss, which also caused the AI to overvalue it when evaluating switch ins.
• Fixed Covert Cloak incorrectly blocking Silk Trap and Obstruct effects if the triggering move would be blocked by Covert Cloak.
• Fixed a softlock occurring when viewing an Egg summary screen. 
• Fixed Defog being used by the target instead when they are behind a Substitute while Reflect or Light Screen is active.
• Fixed Tera Starstorm not being boosted by Sheer Force, which also caused Covert Cloak and Shield Dust to fail to block its effect.
• Fixed Supersweet Syrup and Illuminate incorrectly activating Adrenaline Orb.
• Fixed a visual bug with Tar Shot displaying a failure message when the target was already affected by Tar Shot but its Speed could still be lowered.
• Fixed Wallace’s Diancie’s Mega Evolution not cancelling multihit moves as intended.
• Fixed Binding Move score stacking with HDM.
• Fixed Echoed Voice and similar moves not resetting their stack boost after a flinch and similar interruptions.
• Fixed the Quality of Life menu missing the Air Slash and Signal Beam tutors.
• Fixed Last Resort not working properly when previous moves were interrupted before being used).
• Fixed Struggle recoil not using standard rounding.
• Fixed the AI incorrectly applying Technician to a boosted Payback.
• Fixed Mortal Spin’s spinning effect activating even when hitting an immune target.
• Fixed Focus Sash reactivating after being consumed by Future Sight.
• Fixed Zoom Lens activating if the original target switched out using a pivot move. 
• Fixed Fling effects not activating if the target’s held item activated during the attack (e.g. Focus Sash, Colbur Berry). 
• Fixed Teatime not affecting certain Pokémon in double battles depending on their position.
• Fixed Wandering Spirit not transferring if Pursuit hit a Pokémon using a pivot move. 
• Fixed Wandering Spirit incorrectly working on Protosynthesis and Quark Drive. 
• Fixed Sleep Talk and Snore not properly reducing sleep turns when switching out.

V1.2.3

• Adjusted the three Finizen in the Finizen Fanclub so they now only use Sonicboom, allowing for easier pre-damage setup for Sailor MSPaint.
• Fixed an issue where the Air Slash and Signal Beam tutors were not functioning as intended.
• Fixed a bug where a placeholder species could be encountered while fishing on Route 124.
• Fixed an issue in Belly Drum AI logic where the AI incorrectly evaluated post-Belly Drum survival.
• Fixed various Covert Cloak and Shield Dust interactions. Trapping effects, Obstruct/Silk Trap, and hazard effects are no longer incorrectly prevented.
• Fixed Stomping Tantrum not receiving its power boost when a move failed due to an immunity-granting Ability that raises stats (e.g. Motor Drive).
• Fixed a rounding error affecting Protean and Libero. 
• Fixed an issue with Sticky Barb being duplicated.
• Fixed Me First only copying the first hit of multi-hit moves.
• Fixed various issues involving Mycelium Might.
• Fixed Dipplin’s icon missing its animation.

V1.2.2

AI Fixes

• The full AI documentation is now available and can be found in the drive.
• Removed AI considering Zap Cannon when attempting to spread paralysis through Nuzzle AI logic.
• Fixed Fake Out KOs being discouraged against targets that cannot be flinched.
• Fixed Metal Burst not receiving its baseline score, causing AI to almost never use it.
• Fixed Magnet Rise AI incorrectly evaluating the player’s Electric-type moves instead of Ground-type moves. 
• Fixed an incorrect percentage in the Round AI logic. 
• Fixed AI using Focus Energy and Laser Focus against targets that are immune to critical hits.
• Fixed Stockpile AI score increases being applied twice. 
• Fixed errors in hazard AI logic when the AI was on its last remaining Pokémon.
• Fixed inconsistencies with Feint AI logic, and corrected an issue where Hyperspace Hole was being incorrectly discouraged by the AI.
• Fixed Salt Cure and Syrup Bomb score penalties being applied when the user was affected instead of the target.

Bugs

• Fixed an issue where using a Tutor would sometimes result in a Pokémon losing levels.
• Fixed Mighty Cleave incorrectly removing the effects of protection moves.
• Fixed frozen Pokémon taking crash damage.
• Fixed Pain Split not being treated as passive damage, causing abilities such as Electromorphosis to activate incorrectly.
• Fixed Symbiosis activating when an Eject item was consumed.

Hotfixes

• Motivation: Slowking has been one of the most heavily debated Pokémon in the game and is widely considered to be overtuned. As a result, it will receive a slight adjustment while still retaining access to its maximum potential at the cost of a Heart Scale. As compensation, a handful of generally underappreciated Pokémon will receive small positive changes.
• Replaced Slowking’s Yawn with Hypnosis and added Yawn as a Scale Move.
• Replaced Slowbro’s Heal Pulse with Extrasensory 
• Replaced Chip Away with Aqua Cutter in Feraligatr’s learnset.
• Added Follow Me (at Level 29), Flail (at Level 37), Reversal (at Level 38) and Torment (at Level 50) to Grafaiai’s learnset. * Added Clear Smog (at Level 25), Giga Drain (at Level 38), Fissure (at Level 39) and Coil (at Level 99) to Arbok’s learnset and swapped Gastro Acid and Disable. 
• Tornadus-Therian Ability: Unnerve → Regenerator; Tangela Ability: Chlorophyll → Regenerator
• Added Sky Uppercut to several learnsets so Fighting-types are not limited to Brick Break or Low Kick as their primary Fighting-type STAB options.

Quality of life

• Casual Mode now provides 200 Heart Scales instead of 50.
• Added Revive to Oldale Town mart
• Added a “Return All Items” feature, allowing all held items to be removed from either the party or PC boxes at once. (Credits Maxime)
• Increased the Poké Ball catch rate modifier from 1× to 1.5×, matching the effectiveness of a Great Ball.
• Added Fly points at Mt. Pyre Summit and Route 128 (above Seafloor Cavern).
• Added a new post-Maxie cutscene in Magma Hideout that allows quick travel to Slateport City for the next story event.

Other

• Added Signal Beam and Air Slash as tutor moves in Route 120.
• Midturn Switch AI: Added OHKO moves to the “Avoid Switch” condition.
• Adjusted Gloom’s moveset in Root Academy to remove a duplicate Moonblast (Moonblast → Worry Seed). 
• Removed a duplicate Sentret from Root Academy. 
• Reduced specific IVs for the following Pokémon in Root Academy: Pikipek, Wooloo, Machop, Remoraid, Makuhita, Gurdurr, Arctibax, Metang
• Renamed Camper Derek on Route 111 to Camper Tanjiro, as Bug Maniac Derek already exists on Route 117.