diff --git a/asset_dev/sfx/nodule_splat.aup3 b/asset_dev/sfx/nodule_splat.aup3
new file mode 100644
index 0000000..1e9bc57
Binary files /dev/null and b/asset_dev/sfx/nodule_splat.aup3 differ
diff --git a/levels/ghost_ship/ghost_ship_level.tscn b/levels/ghost_ship/ghost_ship_level.tscn
index 16bb904..76e7697 100644
--- a/levels/ghost_ship/ghost_ship_level.tscn
+++ b/levels/ghost_ship/ghost_ship_level.tscn
@@ -6068,6 +6068,7 @@ shape = SubResource("ConcavePolygonShape3D_d1yty")
 
 [node name="SimpleWalls" type="StaticBody3D" parent="Airlock/Bounds"]
 transform = Transform3D(1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1.5, 0)
+collision_layer = 5
 
 [node name="MeshInstance3D" type="MeshInstance3D" parent="Airlock/Bounds/SimpleWalls"]
 transform = Transform3D(-4.37114e-08, 0, 1, 0, 1, 0, -1, 0, -4.37114e-08, -4.5, 0, 0)
diff --git a/src/effects/grunk_splatter.tscn b/src/effects/grunk_splatter.tscn
index d1db77f..01ad15b 100644
--- a/src/effects/grunk_splatter.tscn
+++ b/src/effects/grunk_splatter.tscn
@@ -101,16 +101,20 @@ stream_1/stream = ExtResource("4_2iem1")
 
 [node name="GrunkSplatter" type="GPUParticles3D"]
 sorting_offset = 9.0
+emitting = false
 amount = 64
 lifetime = 0.3
+one_shot = true
 explosiveness = 0.45
 process_material = SubResource("ParticleProcessMaterial_5xu2x")
 draw_pass_1 = SubResource("QuadMesh_y6klh")
 
 [node name="SubSplatter" type="GPUParticles3D" parent="."]
 sorting_offset = 9.0
+emitting = false
 amount = 4
 lifetime = 0.3
+one_shot = true
 explosiveness = 0.63
 interpolate = false
 fract_delta = false
@@ -118,15 +122,18 @@ process_material = SubResource("ParticleProcessMaterial_2iem1")
 draw_pass_1 = SubResource("QuadMesh_6adkd")
 
 [node name="FreeTimer" type="Timer" parent="."]
-wait_time = 0.3
+wait_time = 3.0
 one_shot = true
 autostart = true
 
 [node name="SplatterSFX" type="AudioStreamPlayer3D" parent="."]
 stream = SubResource("AudioStreamRandomizer_6adkd")
-volume_db = -20.0
+volume_db = -10.0
 unit_size = 6.0
 autoplay = true
 bus = &"SFX"
 
+[connection signal="ready" from="." to="SplatterSFX" method="play"]
+[connection signal="ready" from="." to="." method="set_emitting" binds= [true]]
+[connection signal="ready" from="." to="SubSplatter" method="set_emitting" binds= [true]]
 [connection signal="timeout" from="FreeTimer" to="." method="queue_free"]
diff --git a/vault/TODO.md b/vault/TODO.md
index f586788..a9f50da 100644
--- a/vault/TODO.md
+++ b/vault/TODO.md
@@ -47,7 +47,11 @@
 		- [ ] [[manual]]
 	- [ ] SFX:
 		- [ ] ui bonk
-		- [ ] prop clear glitter
+		- [ ] ui confirm
+		- [ ] item collection
+		- [ ] retinal scanner bonk
+		- [ ] retinal scanner activation
+		- [ ] #maybe prop clear glitter
 		- [x] computer bleep on reload
 		- [x] grunk tank deposit schlorp
 		- [x] player ship door
@@ -56,31 +60,46 @@
 		- [x] grunk footsteps
 		- [x] beam noises
 		- [x] spray noises
-		- [ ] switch klaxon
+		- [ ] inactive switch pulse
 		- [x] switch OK
 		- [x] switch activation
 		- [x] bulkhead opening
 		- [x] grunk nodule splatter
+		- [ ] REDO grunk nodule splatter
 		- [x] grunk alarm shriek
 		- [ ] grunk trigger splatter/pulse
-		- [ ] grunk relay pulse
+		- [ ] grunk relay trigger
+		- [ ] #maybe grunk relay heartbeat
+		- [ ] grunk alarm heartbeat
+		- [ ] #maybe grunk alarm pulse-starvation swell
+		- [ ] #maybe hurt effects for grunk nodes/nodules
+		- [ ] #maybe fluorescent light hum
+		- [ ] grunk listener trigger
+		- [ ] #maybe looker node initial detection
+		- [ ] #maybe looker node trigger
+		- [ ] #maybe tripwire activation
 		- [x] grunk heartbeat
 		- [x] grunk chittering
 		- [ ] grunkbeast???
 		- [x] grunk ambiance
 		- [x] spaceship ambiance
+		- [ ] #maybe crew quarters ambiance
+		- [ ] #maybe medbay ambiance
+		- [ ] #maybe ops ambiance
+		- [ ] #maybe cargo bay ambiance
+		- [ ] #maybe grunk node ambiance
 	- [ ] models:
 		- [ ] [[grunk]] nodes:
-			- [ ] [[alarm]]
-			- [ ] [[trigger]]
+			- [x] [[alarm]]
+			- [x] [[trigger]]
 			- [ ] [[heart]]
 			- [ ] [[relay]]
-			- [ ] [[tripwire]]
-			- [ ] [[looker]]
+			- [ ] #maybe [[tripwire]]
+			- [ ] #maybe [[looker]]
 			- [ ] [[listener]]
 		- [ ] common props:
 			- [x] wall switch
-			- [ ] secure switch
+			- [ ] retinal scanner
 			- [x] bulkhead
 			- [ ] datapad
 			- [x] overhead light fixture