diff --git a/collector/collector.gd b/collector/collector.gd
index c9a4266..d05e58b 100644
--- a/collector/collector.gd
+++ b/collector/collector.gd
@@ -20,13 +20,14 @@ var collected_count: int = 0
 @export var collecting_amount: int
 
 ## The collector has picked up an object.
-signal collected(what: PhysicsBody2D)
+signal collected(body: PhysicsBody2D)
 
 ## The collector has received its collection goal and is about to reset.
 signal goal
 
 
 func _on_body_entered(body: Node2D):
+
 	if body is PhysicsBody2D:
 		if body.collision_layer & collecting_collision_mask:
 			var collectible: Collectible = body.get_node("Collectible")
diff --git a/entity/coin_copper.tscn b/entity/coin_copper.tscn
index 20fb5ea..c707d68 100644
--- a/entity/coin_copper.tscn
+++ b/entity/coin_copper.tscn
@@ -7,7 +7,7 @@
 [ext_resource type="PackedScene" uid="uid://ujpra0s1kpqi" path="res://value/valuable.tscn" id="5_jdvvd"]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_c6byl"]
-size = Vector2(16, 5)
+size = Vector2(16.5, 5.08333)
 
 [node name="CoinCopper" type="RigidBody2D"]
 collision_layer = 5
@@ -19,7 +19,6 @@ linear_damp = 0.1
 angular_damp = 0.1
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
-scale = Vector2(3, 3)
 shape = SubResource("RectangleShape2D_c6byl")
 
 [node name="Sprite" type="Sprite2D" parent="CollisionShape2D"]
diff --git a/game/game.gd b/game/game.gd
index e2e8253..33de062 100644
--- a/game/game.gd
+++ b/game/game.gd
@@ -7,3 +7,4 @@ class_name Game
 
 func trigger_spawn():
 	button_spawner.spawn()
+
diff --git a/game/game.tscn b/game/game.tscn
index e5a29fd..6b12a48 100644
--- a/game/game.tscn
+++ b/game/game.tscn
@@ -1,10 +1,11 @@
-[gd_scene load_steps=6 format=3 uid="uid://c3rxmcwa5nqng"]
+[gd_scene load_steps=7 format=3 uid="uid://c3rxmcwa5nqng"]
 
 [ext_resource type="Script" path="res://game/game.gd" id="1_i3ly0"]
 [ext_resource type="PackedScene" uid="uid://bllsprv8orpn4" path="res://bottle/bottle.tscn" id="1_y7o2l"]
 [ext_resource type="PackedScene" uid="uid://d05b8jy3xmpcb" path="res://bottle/gravity_from_gyro.tscn" id="2_h2pfr"]
 [ext_resource type="PackedScene" uid="uid://c67lfbk4gf1ga" path="res://spawner/spawner.tscn" id="3_qwsty"]
 [ext_resource type="PackedScene" uid="uid://c3kitncwpi42j" path="res://entity/coin_copper.tscn" id="4_e5nwi"]
+[ext_resource type="PackedScene" uid="uid://ratkps4plkhl" path="res://convertors/copper_to_silver.tscn" id="6_tf2pv"]
 
 [node name="Game" type="Node2D"]
 texture_filter = 1
@@ -14,6 +15,10 @@ script = ExtResource("1_i3ly0")
 
 [node name="GravityFromGyro" parent="Bottle" instance=ExtResource("2_h2pfr")]
 
+[node name="CopperToSilver" parent="." instance=ExtResource("6_tf2pv")]
+z_index = 10
+position = Vector2(2, -314)
+
 [node name="TimeSpawner" parent="." instance=ExtResource("3_qwsty")]
 position = Vector2(0, -480)
 scene = ExtResource("4_e5nwi")