diff --git a/levels/mechanic_test/mechanic_test.tscn b/levels/mechanic_test/mechanic_test.tscn
index 337a6e1..99f1761 100644
--- a/levels/mechanic_test/mechanic_test.tscn
+++ b/levels/mechanic_test/mechanic_test.tscn
@@ -174,8 +174,9 @@ shader_parameter/jitter_time_scale = 0.1
 shader_parameter/vertex_inflation = 0.0
 shader_parameter/inflation_pixellation = 10.0
 
-[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_ujrcv"]
+[sub_resource type="StandardMaterial3D" id="StandardMaterial3D_cgmn0"]
 resource_local_to_scene = true
+cull_mode = 2
 albedo_texture = ExtResource("9_cgmn0")
 metallic = 1.0
 metallic_texture = ExtResource("10_aix42")
@@ -205,7 +206,7 @@ _surfaces = [{
 "format": 34896613399,
 "index_count": 6,
 "index_data": PackedByteArray("AAABAAIAAgABAAMA"),
-"material": SubResource("StandardMaterial3D_ujrcv"),
+"material": SubResource("StandardMaterial3D_cgmn0"),
 "name": "Plane",
 "primitive": 3,
 "uv_scale": Vector4(0, 0, 0, 0),
@@ -393,6 +394,9 @@ transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, -0.15, 1.75, 0)
 [node name="GunkRelay3" parent="SignalTest" instance=ExtResource("10_iyuyb")]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0.2, 1.95, 0)
 
+[node name="GunkRelay4" parent="SignalTest" instance=ExtResource("10_iyuyb")]
+transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0.2, 1.45, 0)
+
 [node name="GunkAlarm" parent="SignalTest" instance=ExtResource("11_qjnj2")]
 transform = Transform3D(1, 0, 0, 0, -4.37114e-08, -1, 0, 1, -4.37114e-08, 0.9, 1.75, 0)
 
@@ -409,4 +413,6 @@ transform = Transform3D(1, 0, 0, 0, -4.37114e-08, -1, 0, 1, -4.37114e-08, 0.9, 1
 [connection signal="activated" from="SignalTest/WallSwitch" to="SignalTest/GunkRelay" method="trigger"]
 [connection signal="triggered" from="SignalTest/GunkRelay" to="SignalTest/GunkRelay2" method="trigger"]
 [connection signal="triggered" from="SignalTest/GunkRelay2" to="SignalTest/GunkRelay3" method="trigger"]
+[connection signal="triggered" from="SignalTest/GunkRelay2" to="SignalTest/GunkRelay4" method="trigger"]
 [connection signal="triggered" from="SignalTest/GunkRelay3" to="SignalTest/GunkAlarm" method="trigger"]
+[connection signal="triggered" from="SignalTest/GunkRelay4" to="SignalTest/GunkAlarm" method="trigger"]
diff --git a/src/world/mechanics/relay/gunk_relay.tscn b/src/world/mechanics/relay/gunk_relay.tscn
index 6a917d4..14f7065 100644
--- a/src/world/mechanics/relay/gunk_relay.tscn
+++ b/src/world/mechanics/relay/gunk_relay.tscn
@@ -58,7 +58,6 @@ collision_layer = 5
 script = ExtResource("1_rdv5j")
 durability = 0.8
 value = 800.0
-metadata/_custom_type_script = "uid://cs6y5mt7bx1yl"
 
 [node name="MeshInstance3D" type="MeshInstance3D" parent="."]
 mesh = SubResource("SphereMesh_hsruj")