diff --git a/components/Abstracts/EntityBase.tscn b/components/Abstracts/EntityBase.tscn
index b97cd58..210159d 100644
--- a/components/Abstracts/EntityBase.tscn
+++ b/components/Abstracts/EntityBase.tscn
@@ -1,10 +1,24 @@
-[gd_scene load_steps=41 format=3 uid="uid://cvogxi7mktumf"]
+[gd_scene load_steps=42 format=3 uid="uid://cvogxi7mktumf"]
 
 [ext_resource type="Script" uid="uid://ds3j3f82li68h" path="res://scripts/Statemachine/EntityBase.gd" id="1_mvol6"]
 [ext_resource type="Texture2D" uid="uid://dwwpkn4q07ja2" path="res://icon.svg" id="2_7lpu0"]
 [ext_resource type="AudioStream" uid="uid://cn876dtp1ypqx" path="res://resources/sounds/effect/Collect.wav" id="2_qt0aq"]
 [ext_resource type="PackedScene" uid="uid://dcjqjqere8ets" path="res://components/UI/EntityStateBar.tscn" id="2_uje1g"]
 
+[sub_resource type="SceneReplicationConfig" id="SceneReplicationConfig_tiuhe"]
+properties/0/path = NodePath(".:displayName")
+properties/0/spawn = true
+properties/0/replication_mode = 1
+properties/1/path = NodePath(".:position")
+properties/1/spawn = true
+properties/1/replication_mode = 1
+properties/2/path = NodePath("texture/animator/animatree:parameters/blend_position")
+properties/2/spawn = true
+properties/2/replication_mode = 1
+properties/3/path = NodePath(".:health")
+properties/3/spawn = true
+properties/3/replication_mode = 1
+
 [sub_resource type="SpriteFrames" id="SpriteFrames_wcqpm"]
 animations = [{
 "frames": [{
@@ -374,10 +388,14 @@ alpha_curve = SubResource("CurveTexture_vvfxd")
 
 [sub_resource type="CircleShape2D" id="CircleShape2D_34h7q"]
 
-[node name="HJM" type="CharacterBody2D"]
+[node name="EntityBase" type="CharacterBody2D"]
 collision_layer = 0
 script = ExtResource("1_mvol6")
 
+[node name="syncer" type="MultiplayerSynchronizer" parent="."]
+unique_name_in_owner = true
+replication_config = SubResource("SceneReplicationConfig_tiuhe")
+
 [node name="weaponStore" type="Node2D" parent="."]
 unique_name_in_owner = true
 
diff --git a/scripts/Contents/Panels/Starter.gd b/scripts/Contents/Panels/Starter.gd
index cb71bb9..3ce0920 100644
--- a/scripts/Contents/Panels/Starter.gd
+++ b/scripts/Contents/Panels/Starter.gd
@@ -63,6 +63,7 @@ func startMultiplayerGame():
 func startSingleplayerGame():
 	MultiplayerState.isMultiplayer = false
 	EntityBase.generatePlayer(playerNameInput.text)
+	UIState.player = EntityBase.findPlayer(playerNameInput.text)
 	WorldManager.rootNode.spawnWave()
 	UIState.closeCurrentPanel()
 
diff --git a/scripts/Contents/Wave.gd b/scripts/Contents/Wave.gd
index 9496d4c..17443eb 100644
--- a/scripts/Contents/Wave.gd
+++ b/scripts/Contents/Wave.gd
@@ -71,8 +71,8 @@ static func entityCountOf(wave: Wave) -> int:
 		else:
 			return randi_range(ceil(wave.minCount), floor(wave.maxCount * (1 + GameRule.entityCountBoostPerWave * current)))
 	return 0
-static func spawn() -> Array[Wave]:
-	var result: Array[Wave] = []
+static func spawn() -> Array:
+	var result: Array = []
 	for i in range(len(data)):
 		var wave: Wave = data[i]
 		for j in range(entityCountOf(wave)):
@@ -80,8 +80,10 @@ static func spawn() -> Array[Wave]:
 			currentWave.entityPosition = MathTool.randv2_range(500)
 			result.append(currentWave)
 	return result
-static func next(waves: Array[Wave]):
+static func next(waves: Array):
 	for wave in waves:
+		if wave is EncodedObjectAsID:
+			wave = instance_from_id(wave.get_instance_id())
 		EntityBase.generate(ComponentManager.getCharacter(wave.entity), wave.entityPosition, true, wave.isBoss)
 	current += 1
 static func startWith(wave: int):
diff --git a/scripts/Statemachine/EntityBase.gd b/scripts/Statemachine/EntityBase.gd
index f07d059..59224a1 100644
--- a/scripts/Statemachine/EntityBase.gd
+++ b/scripts/Statemachine/EntityBase.gd
@@ -87,9 +87,10 @@ var inventoryMax = {
 @onready var damageAnchor: Node2D = $"%damageAnchor"
 @onready var trailParticle: GPUParticles2D = $"%trailParticle"
 @onready var weaponStore: Node2D = $"%weaponStore"
+@onready var syncer: MultiplayerSynchronizer = $"%syncer"
 var statebar: EntityStateBar
 
-var health: float = 0
+@export var health: float = 0
 var energy: float = 0
 var sprinting: bool = false
 var targetableSprinting: bool = false
@@ -121,7 +122,6 @@ func _ready():
 			weapons.append(i)
 			weaponBag.append(i.displayName)
 		statebar.levelLabels.hide()
-		if !is_instance_valid(UIState.player): UIState.player = self
 		energyChanged.connect(
 			func(newEnergy, dontChangeDirection):
 				if !UIState.player == self: return
@@ -434,8 +434,13 @@ func enterStage(_stage: int):
 func kill():
 	pass
 
+static func findPlayer(playerName: String) -> EntityBase:
+	for i in WorldManager.tree.get_nodes_in_group("players"):
+		if i.displayName == playerName:
+			return i
+	return null
 static func generatePlayer(playerName: String) -> EntityBase:
-	var player = generate(ComponentManager.getCharacter("Rooster"), Vector2.ZERO, false, false, true)
+	var player = generate(ComponentManager.getCharacter("Rooster"), Vector2.ZERO, false)
 	player.displayName = playerName
 	player.name = "Player_%s" % playerName
 	return player
@@ -455,7 +460,7 @@ static func generate(
 	else:
 		instance.add_to_group("players")
 	if addToWorld:
-		WorldManager.rootNode.add_child(instance)
+		WorldManager.rootNode.spawn(instance)
 	return instance
 static func mobCount():
 	return len(WorldManager.tree.get_nodes_in_group("mobs"))
diff --git a/scripts/Tools/Managers/WorldManager.gd b/scripts/Tools/Managers/WorldManager.gd
index 20324ca..6c564f1 100644
--- a/scripts/Tools/Managers/WorldManager.gd
+++ b/scripts/Tools/Managers/WorldManager.gd
@@ -18,7 +18,7 @@ func _physics_process(delta):
 		UIState.setPanel("MakeFeed")
 
 @rpc("authority")
-func nextWave(waves: Array[Wave]):
+func nextWave(waves: Array):
 	Wave.next(waves)
 
 func spawnWave():