diff --git a/Data/Map078.rxdata b/Data/Map078.rxdata
index 6caccacdb..2abe572fc 100644
Binary files a/Data/Map078.rxdata and b/Data/Map078.rxdata differ
diff --git a/Data/Map490.rxdata b/Data/Map490.rxdata
index 630692201..e4b534641 100644
Binary files a/Data/Map490.rxdata and b/Data/Map490.rxdata differ
diff --git a/Data/Map624.rxdata b/Data/Map624.rxdata
index 5c55586ba..e48c40b6e 100644
Binary files a/Data/Map624.rxdata and b/Data/Map624.rxdata differ
diff --git a/Data/MapInfos.rxdata b/Data/MapInfos.rxdata
index 12a65f0e0..16b28da01 100644
Binary files a/Data/MapInfos.rxdata and b/Data/MapInfos.rxdata differ
diff --git a/Data/Scripts/011_Battle/001_Battler/001_PokeBattle_Battler.rb b/Data/Scripts/011_Battle/001_Battler/001_PokeBattle_Battler.rb
index d976db834..c0267d2ca 100644
--- a/Data/Scripts/011_Battle/001_Battler/001_PokeBattle_Battler.rb
+++ b/Data/Scripts/011_Battle/001_Battler/001_PokeBattle_Battler.rb
@@ -64,6 +64,11 @@ class PokeBattle_Battler
     return GameData::Ability.try_get(@ability_id)
   end
 
+  def hasHiddenAbility?
+    return @pokemon.ability_index >= 2
+  end
+
+
   def ability=(value)
     new_ability = GameData::Ability.try_get(value)
     @ability_id = (new_ability) ? new_ability.id : nil
diff --git a/Data/Scripts/011_Battle/005_Battle scene/009_Scene_Animations.rb b/Data/Scripts/011_Battle/005_Battle scene/009_Scene_Animations.rb
index c7c76c1e4..980a3ba1c 100644
--- a/Data/Scripts/011_Battle/005_Battle scene/009_Scene_Animations.rb	
+++ b/Data/Scripts/011_Battle/005_Battle scene/009_Scene_Animations.rb	
@@ -42,6 +42,15 @@ class PokeBattle_Scene
     if @battle.showAnims
       for i in 0...@battle.sideSizes[1]
         idxBattler = 2*i+1
+
+        #hidden ability animation
+        if @battle.battlers[idxBattler].hasHiddenAbility?
+          pbCommonAnimation("StatUp",@battle.battlers[idxBattler])
+          @battle.pbShowAbilitySplash(@battle.battlers[idxBattler],true)
+          @battle.pbHideAbilitySplash(@battle.battlers[idxBattler])
+        end
+
+        #shiny animation
         next if !@battle.battlers[idxBattler] || !@battle.battlers[idxBattler].shiny?
         pbCommonAnimation("Shiny",@battle.battlers[idxBattler])
       end
diff --git a/Data/Scripts/048_Fusion/PokemonFusion.rb b/Data/Scripts/048_Fusion/PokemonFusion.rb
index 481774960..97549bf30 100644
--- a/Data/Scripts/048_Fusion/PokemonFusion.rb
+++ b/Data/Scripts/048_Fusion/PokemonFusion.rb
@@ -729,8 +729,9 @@ class PokemonFusionScene
         @scene.pbShowPokedex(@newspecies)
       end
       #first check if hidden ability
-      hiddenAbility1 = @pokemon1.ability == @pokemon1.getAbilityList[0][-1]
-      hiddenAbility2 = @pokemon2.ability == @pokemon2.getAbilityList[0][-1]
+      # getAbilityList format: [[:ABILITY, index],...]
+      hiddenAbility1 = @pokemon1.ability == @pokemon1.getAbilityList[-1][0]
+      hiddenAbility2 = @pokemon2.ability == @pokemon2.getAbilityList[-1][0]
 
       #change species
       @pokemon1.species = newSpecies
diff --git a/Data/Scripts/049_Compatibility/Constants.rb b/Data/Scripts/049_Compatibility/Constants.rb
index 3432ae548..515ec355c 100644
--- a/Data/Scripts/049_Compatibility/Constants.rb
+++ b/Data/Scripts/049_Compatibility/Constants.rb
@@ -115,6 +115,7 @@ VAR_PREMIUM_WONDERTRADE_LEFT=111
 VAR_RIVAL_STARTER=250
 VAR_FUSION_ICON_STYLE=220
 VAR_SHINY_HUE_OFFSET=275
+VAR_CURRENT_HIDDEN_MAP = 226
 
 #Randomizer
 VAR_RANDOMIZER_WILD_POKE_BST=197
diff --git a/Data/Scripts/050_AddOns/HiddenAbilityMaps.rb b/Data/Scripts/050_AddOns/HiddenAbilityMaps.rb
index 4a004a09a..67016493d 100644
--- a/Data/Scripts/050_AddOns/HiddenAbilityMaps.rb
+++ b/Data/Scripts/050_AddOns/HiddenAbilityMaps.rb
@@ -1,7 +1,7 @@
 
 
 HIDDEN_MAPS_STEPS = 1500
-HIDDEN_MAP_ALWAYS = [178,655,570,356]
+HIDDEN_MAP_ALWAYS = [178,655,570,356,78] #todo remove 78 (route 1)
 RANDOM_HIDDEN_MAP_LIST =  [8,109,431,446,402,403,467,468,10,23,167,16,19,78,185,86,
                            491,90,40,342,490,102,103,104,105,106,1,12,413,445,484,485,486,140,350,146,
                            149,304,356,307,409,351,495,154,349,322,323,544,198,144,155,444,58,59,229,52,53,54,
@@ -9,7 +9,7 @@ RANDOM_HIDDEN_MAP_LIST =  [8,109,431,446,402,403,467,468,10,23,167,16,19,78,185,
                            335,254,261,262,266,230,145,147,258,284,283,267,586,285,286,287,300,311,47,580,529,
                            635,638,646,560,559,526,600,564,594,566,562,619,563,603,561,597,633,640,641,621,312,
                            670,692,643,523,698,
-                           602,642,623,569,588,573,362,645,651,376
+                           602,642,623,569,588,573,362,645,651,376,762
 ]
 
 Events.onMapUpdate+=proc {|sender,e|
@@ -20,9 +20,25 @@ Events.onMapUpdate+=proc {|sender,e|
 }
 def changeHiddenMap()
   i = rand(RANDOM_HIDDEN_MAP_LIST.length-1)
-  pbSet(226,RANDOM_HIDDEN_MAP_LIST[i])
+  pbSet(VAR_CURRENT_HIDDEN_MAP,RANDOM_HIDDEN_MAP_LIST[i])
 end
 
+Events.onWildPokemonCreate+=proc {|sender,e|
+  if $game_map.map_id== pbGet(226) || isAlwaysHiddenAbilityMap($game_map.map_id)
+    pokemon=e[0]
+    chosenAbility = pokemon.getAbilityList.sample #format: [[:ABILITY, index],...]
+    p chosenAbility
+    pokemon.ability = chosenAbility[0]
+    pokemon.ability_index = chosenAbility[1]
+  end
+}
+
+def isAlwaysHiddenAbilityMap(mapId)
+  return HIDDEN_MAP_ALWAYS.include? mapId
+end
+
+
+
 def Kernel.getMapName(id)
   mapinfos = pbLoadMapInfos
   return mapinfos[id].name
diff --git a/Data/Scripts/050_AddOns/New Items effects.rb b/Data/Scripts/050_AddOns/New Items effects.rb
index f8a499466..3c1ba9e67 100644
--- a/Data/Scripts/050_AddOns/New Items effects.rb	
+++ b/Data/Scripts/050_AddOns/New Items effects.rb	
@@ -378,6 +378,24 @@ ItemHandlers::UseFromBag.add(:ODDKEYSTONE, proc { |item|
   end
 })
 
+def useDreamMirror
+  map_name = Kernel.getMapName(pbGet(226)).to_s
+  Kernel.pbMessage(_INTL("You peeked into the Dream Mirror..."))
+  Kernel.pbMessage(_INTL("You can see a faint glimpse of {1} in the reflection.", map_name))
+end
+
+#DREAMMIRROR
+ItemHandlers::UseFromBag.add(:DREAMMIRROR, proc { |item|
+  useDreamMirror
+  next 1
+})
+
+ItemHandlers::UseInField.add(:DREAMMIRROR, proc { |item|
+  useDreamMirror
+  next 1
+})
+
+
 ItemHandlers::UseFromBag.add(:MAGICBOOTS, proc { |item|
   if $DEBUG
     if Kernel.pbConfirmMessageSerious(_INTL("Take off the Magic Boots?"))
@@ -450,6 +468,8 @@ ItemHandlers::UseOnPokemon.add(:DNASPLICERS, proc { |item, pokemon, scene|
   next false
 })
 
+
+
 ItemHandlers::UseOnPokemon.add(:DNAREVERSER, proc { |item, pokemon, scene|
   if !pokemon.isFusion?
     scene.pbDisplay(_INTL("It won't have any effect."))
diff --git a/Data/System.rxdata b/Data/System.rxdata
index 272789408..c590e0db9 100644
Binary files a/Data/System.rxdata and b/Data/System.rxdata differ
diff --git a/PBS/items.txt b/PBS/items.txt
index f1909a111..8bafb83cb 100644
--- a/PBS/items.txt
+++ b/PBS/items.txt
@@ -667,6 +667,7 @@
 659,TM121,TM121,TM121s,4,10000,"The user shoots boiling hot water at its target. It may also leave the target with a burn.",3,0,0,SCALD
 660,LINKINGCORD,Linking Cord,Linking Cords,1,6000,"A cable exuding a mysterious energy. It’s loved by certain Pokémon.",1,0,7,
 661,INVISIBALL,Invisiball,Invisiball,3,200,"A Pokéball that is completely invisble to the human eye. You shouldn't be able to obtain this item",0,4,4,
+662,DREAMMIRROR,Dream Mirror,Dream Mirrors,8,0,"A strange mirror that allows you to peak into the Dream World for a brief instant.",2,0,6,