diff --git a/Data/Scripts/011_Battle/001_Battle/001_Battle.rb b/Data/Scripts/011_Battle/001_Battle/001_Battle.rb
index 5f64b57e6..cfb1a59b7 100644
--- a/Data/Scripts/011_Battle/001_Battle/001_Battle.rb
+++ b/Data/Scripts/011_Battle/001_Battle/001_Battle.rb
@@ -68,6 +68,7 @@ class Battle
   attr_accessor :controlPlayer    # Whether player's Pokémon are AI controlled
   attr_accessor :expGain          # Whether Pokémon can gain Exp/EVs
   attr_accessor :moneyGain        # Whether the player can gain/lose money
+  attr_accessor :disablePokeBalls # Whether Poké Balls cannot be thrown at all
   attr_accessor :rules
   attr_accessor :choices          # Choices made by each Pokémon this round
   attr_accessor :megaEvolution    # Battle index of each trainer's Pokémon to Mega Evolve
@@ -138,6 +139,7 @@ class Battle
     @controlPlayer     = false
     @expGain           = true
     @moneyGain         = true
+    @disablePokeBalls  = false
     @rules             = {}
     @priority          = []
     @priorityTrickRoom = false
diff --git a/Data/Scripts/012_Overworld/002_Battle triggering/001_Overworld_BattleStarting.rb b/Data/Scripts/012_Overworld/002_Battle triggering/001_Overworld_BattleStarting.rb
index 649ff7efe..eb377c8cf 100644
--- a/Data/Scripts/012_Overworld/002_Battle triggering/001_Overworld_BattleStarting.rb	
+++ b/Data/Scripts/012_Overworld/002_Battle triggering/001_Overworld_BattleStarting.rb	
@@ -32,30 +32,28 @@ class Game_Temp
     when "single", "1v1", "1v2", "2v1", "1v3", "3v1",
          "double", "2v2", "2v3", "3v2", "triple", "3v3"
       rules["size"] = rule.to_s.downcase
-    when "canlose"                then rules["canLose"]        = true
-    when "cannotlose"             then rules["canLose"]        = false
-    when "canrun"                 then rules["canRun"]         = true
-    when "cannotrun"              then rules["canRun"]         = false
-    when "roamerflees"            then rules["roamerFlees"]    = true
-    when "noexp"                  then rules["expGain"]        = false
-    when "nomoney"                then rules["moneyGain"]      = false
-    when "switchstyle"            then rules["switchStyle"]    = true
-    when "setstyle"               then rules["switchStyle"]    = false
-    when "anims"                  then rules["battleAnims"]    = true
-    when "noanims"                then rules["battleAnims"]    = false
+    when "canlose"                then rules["canLose"]          = true
+    when "cannotlose"             then rules["canLose"]          = false
+    when "canrun"                 then rules["canRun"]           = true
+    when "cannotrun"              then rules["canRun"]           = false
+    when "roamerflees"            then rules["roamerFlees"]      = true
+    when "noexp"                  then rules["expGain"]          = false
+    when "nomoney"                then rules["moneyGain"]        = false
+    when "disablepokeballs"       then rules["disablePokeBalls"] = true
+    when "switchstyle"            then rules["switchStyle"]      = true
+    when "setstyle"               then rules["switchStyle"]      = false
+    when "anims"                  then rules["battleAnims"]      = true
+    when "noanims"                then rules["battleAnims"]      = false
     when "terrain"
-      terrain_data = GameData::BattleTerrain.try_get(var)
-      rules["defaultTerrain"] = (terrain_data) ? terrain_data.id : nil
+      rules["defaultTerrain"] = GameData::BattleTerrain.try_get(var)&.id
     when "weather"
-      weather_data = GameData::BattleWeather.try_get(var)
-      rules["defaultWeather"] = (weather_data) ? weather_data.id : nil
+      rules["defaultWeather"] = GameData::BattleWeather.try_get(var)&.id
     when "environment", "environ"
-      environment_data = GameData::Environment.try_get(var)
-      rules["environment"] = (environment_data) ? environment_data.id : nil
-    when "backdrop", "battleback" then rules["backdrop"]       = var
-    when "base"                   then rules["base"]           = var
-    when "outcome", "outcomevar"  then rules["outcomeVar"]     = var
-    when "nopartner"              then rules["noPartner"]      = true
+      rules["environment"] = GameData::Environment.try_get(var)&.id
+    when "backdrop", "battleback" then rules["backdrop"]         = var
+    when "base"                   then rules["base"]             = var
+    when "outcome", "outcomevar"  then rules["outcomeVar"]       = var
+    when "nopartner"              then rules["noPartner"]        = true
     else
       raise _INTL("Battle rule \"{1}\" does not exist.", rule)
     end
@@ -102,6 +100,8 @@ def pbPrepareBattle(battle)
   battle.expGain = battleRules["expGain"] if !battleRules["expGain"].nil?
   # Whether the player gains/loses money at the end of the battle (default: true)
   battle.moneyGain = battleRules["moneyGain"] if !battleRules["moneyGain"].nil?
+  # Whether Poké Balls cannot be thrown at all
+  battle.disablePokeBalls = battleRules["disablePokeBalls"] if !battleRules["disablePokeBalls"].nil?
   # Whether the player is able to switch when an opponent's Pokémon faints
   battle.switchStyle = ($PokemonSystem.battlestyle == 0)
   battle.switchStyle = battleRules["switchStyle"] if !battleRules["switchStyle"].nil?
diff --git a/Data/Scripts/013_Items/003_Item_BattleEffects.rb b/Data/Scripts/013_Items/003_Item_BattleEffects.rb
index d9066a1b3..c1e580638 100644
--- a/Data/Scripts/013_Items/003_Item_BattleEffects.rb
+++ b/Data/Scripts/013_Items/003_Item_BattleEffects.rb
@@ -31,6 +31,10 @@ ItemHandlers::CanUseInBattle.addIf(proc { |item| GameData::Item.get(item).is_pok
       scene.pbDisplay(_INTL("There is no room left in the PC!")) if showMessages
       next false
     end
+    if battle.disablePokeBalls
+      scene.pbDisplay(_INTL("You can't throw a Poké Ball!")) if showMessages
+      next false
+    end
     # NOTE: Using a Poké Ball consumes all your actions for the round. The code
     #       below is one half of making this happen; the other half is in def
     #       pbItemUsesAllActions?.
@@ -50,7 +54,7 @@ ItemHandlers::CanUseInBattle.addIf(proc { |item| GameData::Item.get(item).is_pok
       if battle.pbOpposingBattlerCount == 2
         scene.pbDisplay(_INTL("It's no good! It's impossible to aim when there are two Pokémon!")) if showMessages
       elsif showMessages
-        scene.pbDisplay(_INTL("It's no good! It's impossible to aim when there are more than one Pokémon!"))
+        scene.pbDisplay(_INTL("It's no good! It's impossible to aim when there is more than one Pokémon!"))
       end
       next false
     end