diff --git a/sonic-radiance.love/game/utils/characters.lua b/sonic-radiance.love/game/utils/characters.lua
index 465ce30..37fb34b 100644
--- a/sonic-radiance.love/game/utils/characters.lua
+++ b/sonic-radiance.love/game/utils/characters.lua
@@ -64,10 +64,10 @@ end
 function CharUtils.getCharacterData(charname)
   -- va eprmettre de récupérer les données d'un personnage
   local charfolder = CharUtils.getCharacterDirectory(charname, true)
-  local character = require(charfolder)
-  character.stats  = datasutils.require(charfolder, "stats")
-  character.inventory   = datasutils.require(charfolder, "inventory")
-  character.skills      = datasutils.require(charfolder, "skills")
+  local character = datasutils.copy(charfolder)
+  character.stats  = datasutils.copyDataset(charfolder, "stats")
+  character.inventory   = datasutils.copyDataset(charfolder, "inventory")
+  character.skills      = datasutils.copyDataset(charfolder, "skills")
 
   return character
 end
diff --git a/sonic-radiance.love/game/utils/datas.lua b/sonic-radiance.love/game/utils/datas.lua
index dca4921..59de66a 100644
--- a/sonic-radiance.love/game/utils/datas.lua
+++ b/sonic-radiance.love/game/utils/datas.lua
@@ -28,6 +28,37 @@ function DataUtils.require(parent, filename)
   return require(DataUtils.concatFolder(parent, filename, true))
 end
 
+function DataUtils.copy(filepath)
+  local orig = require(filepath)
+  local orig_type = type(orig)
+  local copy
+  if orig_type == 'table' then
+      copy = {}
+      for orig_key, orig_value in pairs(orig) do
+          copy[orig_key] = orig_value
+      end
+  else -- number, string, boolean, etc
+      copy = orig
+  end
+  return copy
+end
+
+
+function DataUtils.copyDataset(parent, filename)
+  local orig = DataUtils.require(parent, filename)
+  local orig_type = type(orig)
+  local copy
+  if orig_type == 'table' then
+      copy = {}
+      for orig_key, orig_value in pairs(orig) do
+          copy[orig_key] = orig_value
+      end
+  else -- number, string, boolean, etc
+      copy = orig
+  end
+  return copy
+end
+
 function DataUtils.concatDataFolder(folder, lua)
   return DataUtils.concatFolder(DataUtils.getGameDataDir(lua), folder, lua)
 end
diff --git a/sonic-radiance.love/game/utils/ennemies.lua b/sonic-radiance.love/game/utils/ennemies.lua
index dbb9444..11a6c83 100644
--- a/sonic-radiance.love/game/utils/ennemies.lua
+++ b/sonic-radiance.love/game/utils/ennemies.lua
@@ -35,9 +35,9 @@ end
 function EnnemyUtils.getData(directory, name)
   -- va eprmettre de récupérer les données d'un personnage
   local folder = EnnemyUtils.getEnnemyFolder(directory, name, true)
-  local ennemy = require(folder)
-  ennemy.stats  = datasutils.require(folder, "stats")
-  ennemy.skills = datasutils.require(folder, "skills")
+  local ennemy = datasutils.copy(folder)
+  ennemy.stats  = datasutils.copyDataset(folder, "stats")
+  ennemy.skills = datasutils.copyDataset(folder, "skills")
 
   return ennemy
 end