diff --git a/client/character/Character.gd b/client/character/Character.gd
index 7f23e9b..57122a2 100644
--- a/client/character/Character.gd
+++ b/client/character/Character.gd
@@ -1,6 +1,8 @@
 class_name Character
 extends CharacterBody3D
 
+signal jumped
+
 @export var model: Node3D
 @export var move_speed: float = 4.5
 @export var rotation_speed: float = 20.0
@@ -37,6 +39,7 @@ func jump():
 		return
 
 	velocity.y = JUMP_VELOCITY
+	jumped.emit()
 
 func dash():
 	print("dash")
diff --git a/client/network/PlayerAdd.gd b/client/network/PlayerAdd.gd
index 0146188..02c5655 100644
--- a/client/network/PlayerAdd.gd
+++ b/client/network/PlayerAdd.gd
@@ -1,5 +1,7 @@
 extends PacketHandler
 
+signal main_player_spawned(player: Player)
+
 @export var player_scene: PackedScene
 
 func _ready():
@@ -26,6 +28,7 @@ func handle_packet(data: PackedByteArray, _peer: PacketPeer):
 	if player_id == Global.account_id:
 		Global.player = player
 		player.controller = PlayerController.new()
+		main_player_spawned.emit(player)
 	else:
 		player.controller = ProxyController.new()
 	
diff --git a/client/network/PlayerJump.gd b/client/network/PlayerJump.gd
new file mode 100644
index 0000000..b5bb247
--- /dev/null
+++ b/client/network/PlayerJump.gd
@@ -0,0 +1,17 @@
+extends PacketHandler
+
+func _ready():
+	%PlayerAdd.main_player_spawned.connect(on_main_player_spawned)
+
+func on_main_player_spawned(player: Player):
+	player.jumped.connect(on_jump)
+
+func on_jump():
+	var buffer := StreamPeerBuffer.new()
+	buffer.put_8(PacketHandler.Packet.PLAYER_JUMP)
+	%Client.send(buffer.data_array)
+
+func handle_packet(data: PackedByteArray, _peer: PacketPeer):
+	var player_id := data.get_string_from_ascii()
+	var player := %Players.get_node(player_id)
+	player.jump()
diff --git a/client/network/shared/PacketHandler.gd b/client/network/shared/PacketHandler.gd
index 7b3f2e8..7f23e55 100644
--- a/client/network/shared/PacketHandler.gd
+++ b/client/network/shared/PacketHandler.gd
@@ -9,6 +9,8 @@ enum Packet {
 	PLAYER_ADD = 10,
 	PLAYER_REMOVE = 11,
 	PLAYER_MOVE = 12,
+	PLAYER_JUMP = 13,
+	PLAYER_ATTACK = 14,
 }
 
 @export var packet_type: Packet
diff --git a/client/world/Main.tscn b/client/world/Main.tscn
index 099769f..7ba6e89 100644
--- a/client/world/Main.tscn
+++ b/client/world/Main.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=18 format=3 uid="uid://b40y7iuskv1ar"]
+[gd_scene load_steps=19 format=3 uid="uid://b40y7iuskv1ar"]
 
 [ext_resource type="Script" path="res://Game.gd" id="1_uxop2"]
 [ext_resource type="Script" path="res://network/Client.gd" id="2_00qe8"]
@@ -8,6 +8,7 @@
 [ext_resource type="PackedScene" uid="uid://2lcnu3dy54lx" path="res://player/Player.tscn" id="6_jxdko"]
 [ext_resource type="Script" path="res://network/PlayerMove.gd" id="7_6xfox"]
 [ext_resource type="Script" path="res://world/Sun.gd" id="8_leyo3"]
+[ext_resource type="Script" path="res://network/PlayerJump.gd" id="8_p6kmr"]
 [ext_resource type="Environment" uid="uid://dixa0yso2s1u3" path="res://world/Environment.tres" id="9_4u3r5"]
 [ext_resource type="CameraAttributesPractical" uid="uid://b835orxyqq6w5" path="res://camera/CameraAttributes.tres" id="10_4uslp"]
 [ext_resource type="PackedScene" uid="uid://tgmbtt7u172g" path="res://world/Arena.blend" id="11_ffpbh"]
@@ -47,6 +48,7 @@ wait_time = 5.0
 autostart = true
 
 [node name="PlayerAdd" type="Node" parent="Client"]
+unique_name_in_owner = true
 script = ExtResource("5_sd8xh")
 player_scene = ExtResource("6_jxdko")
 packet_type = 10
@@ -55,6 +57,10 @@ packet_type = 10
 script = ExtResource("7_6xfox")
 packet_type = 12
 
+[node name="PlayerJump" type="Node" parent="Client"]
+script = ExtResource("8_p6kmr")
+packet_type = 13
+
 [node name="Statistics" type="Timer" parent="Client"]
 autostart = true
 
diff --git a/server/game/Game.go b/server/game/Game.go
index 5fea9a0..dce248a 100644
--- a/server/game/Game.go
+++ b/server/game/Game.go
@@ -30,6 +30,18 @@ func (game *Game) Run() {
 	<-close
 }
 
+// BroadcastOthers sends the packet to all other players.
+func (game *Game) BroadcastOthers(code byte, data []byte, exclude *Player) {
+	game.players.Each(func(other *Player) bool {
+		if other == exclude {
+			return true
+		}
+
+		game.server.Send(code, data, other.address)
+		return true
+	})
+}
+
 // start starts all game systems.
 func (game *Game) start() {
 	go game.network()
@@ -42,6 +54,7 @@ func (game *Game) network() {
 	game.server.SetHandler(packet.Ping, game.Ping)
 	game.server.SetHandler(packet.Login, game.Login)
 	game.server.SetHandler(packet.PlayerMove, game.Move)
+	game.server.SetHandler(packet.PlayerJump, game.Jump)
 	game.server.Run(4242)
 }
 
diff --git a/server/game/Jump.go b/server/game/Jump.go
new file mode 100644
index 0000000..3211700
--- /dev/null
+++ b/server/game/Jump.go
@@ -0,0 +1,13 @@
+package game
+
+import (
+	"net"
+	"server/game/packet"
+)
+
+// Jump broadcasts the jump action.
+func (game *Game) Jump(data []byte, address *net.UDPAddr, server *Server) error {
+	player := game.players.Get(address)
+	game.BroadcastOthers(packet.PlayerJump, []byte(player.ID), player)
+	return nil
+}
diff --git a/server/game/Move.go b/server/game/Move.go
index b77e4bf..9581ee5 100644
--- a/server/game/Move.go
+++ b/server/game/Move.go
@@ -17,14 +17,6 @@ func (game *Game) Move(data []byte, address *net.UDPAddr, server *Server) error
 	update = AppendFloat(update, player.Position.X)
 	update = AppendFloat(update, player.Position.Z)
 
-	game.players.Each(func(other *Player) bool {
-		if other == player {
-			return true
-		}
-
-		game.server.Send(packet.PlayerMove, update, other.address)
-		return true
-	})
-
+	game.BroadcastOthers(packet.PlayerMove, update, player)
 	return nil
 }
diff --git a/server/game/packet/packet.go b/server/game/packet/packet.go
index 3eec437..815c8bc 100644
--- a/server/game/packet/packet.go
+++ b/server/game/packet/packet.go
@@ -7,4 +7,6 @@ const (
 	PlayerAdd    = 10
 	PlayerRemove = 11
 	PlayerMove   = 12
+	PlayerJump   = 13
+	PlayerAttack = 14
 )