diff --git a/scripts/Contents/Wave.gd b/scripts/Contents/Wave.gd
index 22e4b56..97ac842 100644
--- a/scripts/Contents/Wave.gd
+++ b/scripts/Contents/Wave.gd
@@ -9,20 +9,17 @@ var to: float = 0
 var per: int = 0
 
 static var current: int = 0
-# entity, minCount, maxCount, isBoss, from, to, per
-static var presetWaves = {
-	"normal": [
-		create(preload("res://components/Characters/Hen.tscn"), 1, 5, false, 0, INF, 1),
-		create(preload("res://components/Characters/Chick.tscn"), 0, 0, true, 9, INF, 15),
-		create(preload("res://components/Characters/Bear.tscn"), 0, 0, true, 19, INF, 10),
-	],
-	"testBoss": [
-		create(preload("res://components/Characters/Chick.tscn"), 1, 1, true, 0, INF, 1),
-		create(preload("res://components/Characters/Bear.tscn"), 1, 1, true, 0, INF, 1),
-		create(preload("res://components/Characters/KukeMC.tscn"), 1, 1, true, 0, INF, 1),
-	]
-}
-static var data = presetWaves["normal"]
+static var WAVE_NORMAL = [
+	Wave.create(preload("res://components/Characters/Hen.tscn"), 1, 5, false, 0, INF, 1),
+	Wave.create(preload("res://components/Characters/Chick.tscn"), 0, 0, true, 9, INF, 15),
+	Wave.create(preload("res://components/Characters/Bear.tscn"), 0, 0, true, 19, INF, 10),
+]
+static var WAVE_TESTBOSS = [
+	# Wave.create(preload("res://components/Characters/Chick.tscn"), 1, 1, true, 0, INF, 1),
+	Wave.create(preload("res://components/Characters/Bear.tscn"), 1, 1, true, 0, INF, 1),
+	# Wave.create(preload("res://components/Characters/KukeMC.tscn"), 1, 1, true, 0, INF, 1),
+]
+static var data = WAVE_TESTBOSS
 
 static func create(
 		entity_: PackedScene,
diff --git a/scripts/Statemachine/CooldownTimer.gd b/scripts/Statemachine/CooldownTimer.gd
index 8138e4d..332bd09 100644
--- a/scripts/Statemachine/CooldownTimer.gd
+++ b/scripts/Statemachine/CooldownTimer.gd
@@ -3,6 +3,9 @@ class_name CooldownTimer
 var cooldown: float = 100
 var lastStart: int = 0
 
+func _init(cd: float = 100):
+	cooldown = cd
+
 func isCooldowned():
 	return timeSinceLastStart() >= cooldown
 func start():
diff --git a/scripts/Statemachine/EntityBase.gd b/scripts/Statemachine/EntityBase.gd
index 707999f..2964cfa 100644
--- a/scripts/Statemachine/EntityBase.gd
+++ b/scripts/Statemachine/EntityBase.gd
@@ -48,6 +48,9 @@ var fields = {
 var attackCooldownMap = {
 	0: 100
 }
+var attackCooldowner = {
+	0: CooldownTimer.new()
+}
 var inventory = {
 	ItemStore.ItemType.BASEBALL: 500,
 	ItemStore.ItemType.BASKETBALL: 500,
@@ -88,7 +91,6 @@ var trailing: bool = false
 var lastDirection: int = 1
 var currentFocusedBoss: EntityBase = null
 var charginup: bool = false
-var cooldownTimer = CooldownTimer.new()
 var weapons: Array[Weapon] = []
 
 func _ready():
@@ -228,6 +230,10 @@ func tryAttack(type: int, needChargeUp: bool = false):
 	if isPlayer():
 		state = true
 	else:
+		var cooldownTimer: CooldownTimer
+		if !attackCooldowner.has(type):
+			attackCooldowner[type] = CooldownTimer.new()
+		cooldownTimer = attackCooldowner[type]
 		cooldownTimer.cooldown = attackCooldownMap.get(type, defaultCooldownUnit)
 		state = cooldownTimer.start()
 	if state: