diff --git a/sonic-radiance.love/assets/music/battle2.mp3 b/sonic-radiance.love/assets/music/battle2.mp3
new file mode 100644
index 0000000..9360a30
Binary files /dev/null and b/sonic-radiance.love/assets/music/battle2.mp3 differ
diff --git a/sonic-radiance.love/assets/music/victory.mp3 b/sonic-radiance.love/assets/music/victory.mp3
index 4b8d359..c65ab31 100644
Binary files a/sonic-radiance.love/assets/music/victory.mp3 and b/sonic-radiance.love/assets/music/victory.mp3 differ
diff --git a/sonic-radiance.love/datas/gamedata/battles/test/testBoss.lua b/sonic-radiance.love/datas/gamedata/battles/test/testBoss.lua
index 795ca16..85ff44b 100644
--- a/sonic-radiance.love/datas/gamedata/battles/test/testBoss.lua
+++ b/sonic-radiance.love/datas/gamedata/battles/test/testBoss.lua
@@ -1,8 +1,8 @@
 return {
-  music = "battle1",
+  music = "battle2",
   ennemies = {
     {"normal", "classics", "motobug", 1},
-    {"boss", "classics", "motobug", 2, 1.2, true},
+    {"boss", "classics", "motobug", 10, 1.8, true},
     {"normal", "classics", "motobug", 1}}
 }
 
diff --git a/sonic-radiance.love/scenes/battlesystem/controllers/ennemy.lua b/sonic-radiance.love/scenes/battlesystem/controllers/ennemy.lua
index b8e5e01..9f3e094 100644
--- a/sonic-radiance.love/scenes/battlesystem/controllers/ennemy.lua
+++ b/sonic-radiance.love/scenes/battlesystem/controllers/ennemy.lua
@@ -44,7 +44,7 @@ function EnnemyController:addBoss(ennData)
   boss:setBonus(ennData.pvFactor, ennData.statFactor)
   boss.isBoss = true
   boss:setCheapEffect(ennData.cheapEffect)
-  self.owner.canFleeBattle = false
+  self.turnSystem.canFleeBattle = false
   self:add(boss)
 end
 
diff --git a/sonic-radiance.love/scenes/battlesystem/controllers/init.lua b/sonic-radiance.love/scenes/battlesystem/controllers/init.lua
index 91490a4..6007947 100644
--- a/sonic-radiance.love/scenes/battlesystem/controllers/init.lua
+++ b/sonic-radiance.love/scenes/battlesystem/controllers/init.lua
@@ -41,6 +41,7 @@ function TurnController:getChanceTooFlee(value)
     local speedComparison = math.min(value / self.ennemies:getHighestSpeed(), 1.5)
     return 25 + (50 * speedComparison)
   end
+  return 0
 end
 
 function TurnController:fleeBattle()