diff --git a/autoloads/controls.gd b/autoloads/controls.gd
index c97d245..77bd5fa 100644
--- a/autoloads/controls.gd
+++ b/autoloads/controls.gd
@@ -22,15 +22,15 @@ func _init() -> void:
 
 
 func get_key(action: String) -> int:
-	var scancode = cfg.get_value(action, "keyboard")
-	if scancode == null:
+	var scancode = cfg.get_value(action, "keyboard", -1)
+	if scancode == -1:
 		scancode = _get_default_key(action)
 	return scancode
 
 
 func get_button(action: String) -> int:
-	var button_index = cfg.get_value(action, "gamepad")
-	if button_index == null:
+	var button_index = cfg.get_value(action, "gamepad", -1)
+	if button_index == -1:
 		button_index = _get_default_button(action)
 	return button_index
 
@@ -58,8 +58,8 @@ func _apply_saved_bindings() -> void:
 
 
 func _configure_action_key(action: String) -> void:
-	var scancode = cfg.get_value(action, "keyboard")
-	if scancode == null:
+	var scancode = cfg.get_value(action, "keyboard", -1)
+	if scancode == -1:
 		scancode = _get_default_key(action)
 	_apply_action_key(action, scancode)
 	var linked_action = LINKED_ACTIONS.get(action)
@@ -68,8 +68,8 @@ func _configure_action_key(action: String) -> void:
 
 
 func _configure_action_button(action: String) -> void:
-	var button_index = cfg.get_value(action, "gamepad")
-	if button_index == null:
+	var button_index = cfg.get_value(action, "gamepad", -1)
+	if button_index == -1:
 		button_index = _get_default_button(action)
 	_apply_action_button(action, button_index)
 	var linked_action = LINKED_ACTIONS.get(action)
diff --git a/autoloads/game.gd b/autoloads/game.gd
index cfee035..c0fb298 100644
--- a/autoloads/game.gd
+++ b/autoloads/game.gd
@@ -95,7 +95,7 @@ func _set_difficulty(value: int) -> void:
 func instance_node(node:PackedScene,x:float,y:float,parent):
 		var Instance = node.instance()
 		Instance.global_position = Vector2(x,y)
-		parent.add_child(Instance)
+		parent.call_deferred("add_child", Instance)
 
 #Get position in sectors
 func get_sector(pos):
@@ -122,12 +122,12 @@ func tally_scores() -> void:
 		shards_collected[5] = true
 		# 100% time bonus
 		if time < map.target_time_100:
-			time_bonus = max(2500 - int(2500.0 * time / map.target_time_100), 0)
+			time_bonus = max(2500 - int(2500.0 * time / map.target_time_100), 0) as int
 			shards_collected[6] = true
 	else:
 		# any% time bonus
 		if time < map.target_time_any:
-			time_bonus = max(2500 - int(2500.0 * time / map.target_time_any), 0)
+			time_bonus = max(2500 - int(2500.0 * time / map.target_time_any), 0) as int
 			shards_collected[6] = true
 	# life bonus
 	if deaths == 0:
@@ -195,10 +195,10 @@ func save():
 	
 	# save score and time depending on completion
 	if _get_shards() >= 5 && keys >= 50:
-		save_data.score_100 = max(save_data.score_100, final_score)
+		save_data.score_100 = max(save_data.score_100, final_score) as int
 		save_data.time_100 = min(save_data.time_100, time)
 	else:
-		save_data.score_any = max(save_data.score_any, final_score)
+		save_data.score_any = max(save_data.score_any, final_score) as int
 		save_data.time_any = min(save_data.time_any, time)
 	
 	# set shards
@@ -207,7 +207,7 @@ func save():
 			save_data.shards_collected[i] = true
 	
 	# set keys
-	save_data.keys_collected = max(save_data.keys_collected, keys)
+	save_data.keys_collected = max(save_data.keys_collected, keys) as int
 	
 	# mark as completed
 	save_data.completed = true
@@ -272,9 +272,9 @@ func restart_level():
 		Audio.ac_music.stream_paused = false
 
 #Freeze frame
-func freeze_frame(time):
+func freeze_frame(freeze_time):
 	get_tree().paused = true
-	var timer = get_tree().create_timer(time, true)
+	var timer = get_tree().create_timer(freeze_time, true)
 	timer.connect("timeout", get_tree(), "set_pause", [false])
 	return timer
 
@@ -321,6 +321,6 @@ func _on_player_died() -> void:
 		Audio.play_sound(Audio.a_die, Audio.ac_die)
 		# death score penalty
 		if use_lives == false && lives < 0:
-				score = max(0, score - 500)
+				score = max(0, score - 500) as int
 		# freezeframe
 		Game.freeze_frame(0.3)
diff --git a/autoloads/ngio.gd b/autoloads/ngio.gd
index f5c6875..6303a39 100644
--- a/autoloads/ngio.gd
+++ b/autoloads/ngio.gd
@@ -174,6 +174,8 @@ func request_execute(component: String, parameters: Dictionary = {}, echo: Strin
 	var body = "input=" + to_json(request).percent_encode()
 	# make request
 	var err = http.request(GATEWAY_URI, headers, true, HTTPClient.METHOD_POST, body)
+	if err != OK:
+		push_error("Invalid HTTP request")
 	# yield response
 	yield(http, "request_completed")
 	return _response
diff --git a/autoloads/stain_layer.gd b/autoloads/stain_layer.gd
index c6d5e3f..5c701d9 100644
--- a/autoloads/stain_layer.gd
+++ b/autoloads/stain_layer.gd
@@ -4,6 +4,10 @@ extends Light2D
 onready var viewport: Viewport = $Viewport
 
 
+func _ready() -> void:
+	texture = viewport.get_texture()
+
+
 func _process(delta: float) -> void:
 	var main_viewport = get_viewport()
 	if viewport.canvas_transform != main_viewport.canvas_transform:
diff --git a/autoloads/stain_layer.tscn b/autoloads/stain_layer.tscn
index 02ce9b8..238cbfa 100644
--- a/autoloads/stain_layer.tscn
+++ b/autoloads/stain_layer.tscn
@@ -1,12 +1,8 @@
-[gd_scene load_steps=3 format=2]
+[gd_scene load_steps=2 format=2]
 
 [ext_resource path="res://autoloads/stain_layer.gd" type="Script" id=1]
 
-[sub_resource type="ViewportTexture" id=1]
-viewport_path = NodePath("Viewport")
-
 [node name="StainLight" type="Light2D" groups=["viewport_autoload"]]
-texture = SubResource( 1 )
 offset = Vector2( 128, 96 )
 mode = 2
 range_item_cull_mask = 2
diff --git a/maps/abyss_scholar.tscn b/maps/abyss_scholar.tscn
index c676029..b29d316 100644
--- a/maps/abyss_scholar.tscn
+++ b/maps/abyss_scholar.tscn
@@ -373,9 +373,6 @@ speed = 50.0
 position = Vector2( 48, 1472 )
 curve = SubResource( 14 )
 
-[node name="Eel5" parent="Enemies/Eels" instance=ExtResource( 18 )]
-position = Vector2( 272, 576 )
-
 [node name="Eel6" parent="Enemies/Eels" instance=ExtResource( 18 )]
 position = Vector2( 176, 240 )
 curve = SubResource( 16 )
diff --git a/menus/file_select_panel.tscn b/menus/file_select_panel.tscn
index 2b41b5f..c655462 100644
--- a/menus/file_select_panel.tscn
+++ b/menus/file_select_panel.tscn
@@ -126,3 +126,4 @@ explosiveness = 1.0
 randomness = 0.34
 initial_velocity = 100.0
 scale_amount = 2.0
+spray_ammount = 0
diff --git a/menus/level_select_scholar.gd b/menus/level_select_scholar.gd
index 9e785ad..a40c083 100644
--- a/menus/level_select_scholar.gd
+++ b/menus/level_select_scholar.gd
@@ -69,7 +69,6 @@ func _process(delta: float) -> void:
 	if selected_level + 1 < LevelData.levels.size():
 		var save := Save.current_file
 		var level: LevelEntry = LevelData.levels[selected_level + 1]
-		var shards := save.get_total_shards()
 		if save.get_total_shards() < level.shards_required:
 			forward_arrow.visible = false
 			boss_block.visible = false
@@ -144,7 +143,6 @@ func _select_level(level_id: int) -> void:
 func _can_travel(index: int) -> bool:
 	var save := Save.current_file
 	var level: LevelEntry = LevelData.levels[index]
-	var shards := save.get_total_shards()
 	if save.get_total_shards() < level.shards_required:
 		return false
 	if level.boss_required != "":
diff --git a/menus/main_menu.gd b/menus/main_menu.gd
index 5fd16b3..cc7d5c2 100644
--- a/menus/main_menu.gd
+++ b/menus/main_menu.gd
@@ -16,8 +16,7 @@ func _ready():
 		$Panel/FileSelect.grab_focus()
 	if Game.last_mm_button != null:
 		get_node(Game.last_mm_button).grab_focus()
-	
-	Vector2( 0.83205, 0.5547 )
+
 
 func _on_Continue_button_down():
 	Game.last_mm_button = "Panel/Continue"
diff --git a/menus/results.gd b/menus/results.gd
index 2996a49..ebfd63f 100644
--- a/menus/results.gd
+++ b/menus/results.gd
@@ -7,7 +7,6 @@ const LevelSelect := preload("res://menus/level_select_scholar.tscn")
 onready var shards: Node2D = $ShardsAndBonuses/Shards
 onready var score = $Score
 onready var time = $Time
-onready var final_score: Label = $FinalScore
 onready var animation_player = $AnimationPlayer
 #Score bonuses
 onready var collection_bonus_score = $ShardsAndBonuses/Bonuses/CollectionBonus/CollectionBonusScore
@@ -54,7 +53,7 @@ func _physics_process(delta: float) -> void:
 		animation_player.set_speed_scale(4)
 
 
-func final_score():
+func show_final_score():
 	animation_player.set_speed_scale(2)
 	text_3d.animation_player.set_speed_scale(1)
 
diff --git a/menus/results.tscn b/menus/results.tscn
index 7361746..94c3bf5 100644
--- a/menus/results.tscn
+++ b/menus/results.tscn
@@ -1,4 +1,4 @@
-[gd_scene load_steps=20 format=2]
+[gd_scene load_steps=19 format=2]
 
 [ext_resource path="res://shaders/wibble_wobble.gdshader" type="Shader" id=1]
 [ext_resource path="res://shaders/ska_plane.gdshader" type="Shader" id=2]
@@ -40,11 +40,6 @@ shader_param/ammount = Vector2( 9, 8 )
 shader_param/offset = Vector2( 0, 0 )
 shader_param/delay = Vector2( 0, 0 )
 
-[sub_resource type="Animation" id=3]
-resource_name = "New Anim"
-length = 2.0
-loop = true
-
 [sub_resource type="Animation" id=10]
 length = 0.001
 tracks/0/type = "value"
@@ -319,7 +314,7 @@ tracks/14/keys = {
 "transitions": PoolRealArray( 1 ),
 "values": [ {
 "args": [  ],
-"method": "final_score"
+"method": "show_final_score"
 } ]
 }
 
@@ -556,7 +551,6 @@ texture = ExtResource( 4 )
 [node name="AnimationPlayer" type="AnimationPlayer" parent="."]
 autoplay = "results"
 playback_speed = 2.0
-"anims/New Anim" = SubResource( 3 )
 anims/RESET = SubResource( 10 )
 anims/results = SubResource( 4 )
 
diff --git a/objects/camera.gd b/objects/camera.gd
index d523494..554ebc0 100644
--- a/objects/camera.gd
+++ b/objects/camera.gd
@@ -27,7 +27,8 @@ func _process(delta):
 		if scroll_h && current_sector.x != last_sector.x:
 			position.x = current_sector.x * Game.RESOLUTION.x
 			if respawn_h:
-				var offset = Vector2(8.0 * sign(current_sector.x - last_sector.x), 0.0)
+				# TODO: decide whether to use offset with horizontal respawn
+#				var offset = Vector2(8.0 * sign(current_sector.x - last_sector.x), 0.0)
 				Game.respawn_point = player.global_position
 			last_sector.x = current_sector.x
 		if scroll_v && current_sector.y != last_sector.y:
diff --git a/objects/collectibles/star.gd b/objects/collectibles/star.gd
index ae9342d..14757f6 100644
--- a/objects/collectibles/star.gd
+++ b/objects/collectibles/star.gd
@@ -22,8 +22,8 @@ func _ready():
 	#Change color
 	_set_color(color)
 
-func _set_color(value):
-	color = value
+func _set_color(new_color):
+	color = new_color
 	if is_inside_tree():
 		sprite.material.set_shader_param("palette", COLORS[color])
 		$Sparkles.color = particle_colors[color]
diff --git a/objects/enemy/boss/scrump.tscn b/objects/enemy/boss/scrump.tscn
index 8e322a5..ccffb1a 100644
--- a/objects/enemy/boss/scrump.tscn
+++ b/objects/enemy/boss/scrump.tscn
@@ -88,15 +88,9 @@ autostart = true
 [node name="Position2D" type="Position2D" parent="."]
 position = Vector2( 14, 29 )
 
-[node name="ArrowSpawnTimer" type="Timer" parent="."]
-wait_time = 5.0
-one_shot = true
-autostart = true
-
 [node name="Sprite" type="AnimatedSprite" parent="."]
 position = Vector2( 26, 27 )
 frames = SubResource( 5 )
-frame = 1
 playing = true
 
 [node name="BloodPosition" type="Position2D" parent="."]
@@ -114,4 +108,3 @@ volume_db = -8.0
 
 [connection signal="area_entered" from="Hitbox" to="." method="_on_Hitbox_area_entered"]
 [connection signal="timeout" from="ShootTimer" to="." method="_on_ShootTimer_timeout"]
-[connection signal="timeout" from="ArrowSpawnTimer" to="." method="_on_ArrowSpawnTimer_timeout"]
diff --git a/objects/enemy/boss/sg2083.gd b/objects/enemy/boss/sg2083.gd
index e7106b5..ab61634 100644
--- a/objects/enemy/boss/sg2083.gd
+++ b/objects/enemy/boss/sg2083.gd
@@ -111,6 +111,7 @@ func hurt(amount: float, can_duck: bool = false) -> void:
 	emit_signal("health_changed", hp)
 	if state != State.DEAD and hp <= 0.0:
 		state = State.DEAD
+		emit_signal("died")
 		anims.play("die")
 
 
diff --git a/objects/enemy/death_particles.gd b/objects/enemy/death_particles.gd
index ea583bd..3a6b8f4 100644
--- a/objects/enemy/death_particles.gd
+++ b/objects/enemy/death_particles.gd
@@ -6,9 +6,13 @@ const BloodSpray := preload("res://objects/environment/blood/blood_spray.tscn")
 
 export var spray_ammount: int = 16
 export var spray_velocity: float = 80
+export var autoplay: bool = false
 
 
 func _ready() -> void:
+	if autoplay:
+		emitting = true
+	yield(get_tree(), "idle_frame")
 	for i in spray_ammount:
 		var spray = BloodSpray.instance()
 		spray.global_position = global_position
diff --git a/objects/enemy/skelarcher.gd b/objects/enemy/skelarcher.gd
index 7235a29..7e6c9a8 100644
--- a/objects/enemy/skelarcher.gd
+++ b/objects/enemy/skelarcher.gd
@@ -43,7 +43,7 @@ func die():
 		bone.global_position = global_position
 		bone.linear_velocity = Vector2(bones_speed * rand_range(0.5, 1.5), 0.0).rotated(rand_range(-PI, 0.0))
 		bone.angular_velocity = rand_range(-PI*2.0, PI*2.0)
-		var timer = get_tree().create_timer(3.0 + rand_range(0.0, 1.0), false)
-		timer.connect("timeout", bone, "queue_free")
+		var bone_timer = get_tree().create_timer(3.0 + rand_range(0.0, 1.0), false)
+		bone_timer.connect("timeout", bone, "queue_free")
 		get_parent().call_deferred("add_child", bone)
 	.die() # call rest of enemy.gd die() funciton
diff --git a/objects/enemy/turtle.gd b/objects/enemy/turtle.gd
index 1830d46..b99b5c7 100644
--- a/objects/enemy/turtle.gd
+++ b/objects/enemy/turtle.gd
@@ -101,7 +101,7 @@ func die() -> void:
 	# reset animation
 	sprite.frame_coords.y = 3
 	Audio.play_sound(death_sound, Audio.ac_die)
-	$"%DeathSplatter".emitting = true
+	$"%DeathSplatter".replace_by_instance()
 
 func _draw() -> void:
 	if Engine.editor_hint:
diff --git a/objects/enemy/turtle.tscn b/objects/enemy/turtle.tscn
index 5fb6cdb..aefac1a 100644
--- a/objects/enemy/turtle.tscn
+++ b/objects/enemy/turtle.tscn
@@ -1,8 +1,7 @@
-[gd_scene load_steps=11 format=2]
+[gd_scene load_steps=10 format=2]
 
 [ext_resource path="res://graphics/enemy/turtle.png" type="Texture" id=1]
 [ext_resource path="res://objects/enemy/turtle.gd" type="Script" id=2]
-[ext_resource path="res://objects/enemy/death_particles.tscn" type="PackedScene" id=3]
 [ext_resource path="res://shaders/1px_border.gdshader" type="Shader" id=4]
 
 [sub_resource type="ShaderMaterial" id=6]
@@ -82,8 +81,9 @@ position = Vector2( 8.5, 4 )
 position = Vector2( 11, -0.5 )
 shape = SubResource( 3 )
 
-[node name="DeathSplatter" parent="HeadHitbox/HeadShape" instance=ExtResource( 3 )]
+[node name="DeathSplatter" parent="HeadHitbox/HeadShape" instance_placeholder="res://objects/enemy/death_particles.tscn"]
 unique_name_in_owner = true
+autoplay = true
 
 [node name="SpikeHitbox" type="Area2D" parent="."]
 
@@ -94,6 +94,8 @@ shape = SubResource( 5 )
 disabled = true
 
 [node name="Platform" type="KinematicBody2D" parent="SpikeHitbox"]
+collision_layer = 4
+collision_mask = 0
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="SpikeHitbox/Platform"]
 position = Vector2( 8.5, 3 )
diff --git a/objects/hud/3d_text.tscn b/objects/hud/3d_text.tscn
index 8a6a0f8..da91231 100644
--- a/objects/hud/3d_text.tscn
+++ b/objects/hud/3d_text.tscn
@@ -6,17 +6,11 @@
 [ext_resource path="res://ui/Boba Date.otf" type="DynamicFontData" id=4]
 [ext_resource path="res://ui/HooskaiChamferedSquare.ttf" type="DynamicFontData" id=5]
 
-[sub_resource type="SpatialMaterial" id=11]
-albedo_color = Color( 0.309804, 0.690196, 0.380392, 1 )
-metallic = 0.35
-metallic_specular = 0.11
-
 [sub_resource type="DynamicFont" id=19]
 font_data = ExtResource( 1 )
 
 [sub_resource type="TextMesh" id=2]
 resource_local_to_scene = true
-material = SubResource( 11 )
 text = "TEXT"
 font = SubResource( 19 )
 pixel_size = 0.05
@@ -185,6 +179,11 @@ tracks/4/keys = {
 "values": [ ExtResource( 4 ) ]
 }
 
+[sub_resource type="SpatialMaterial" id=11]
+albedo_color = Color( 0.309804, 0.690196, 0.380392, 1 )
+metallic = 0.35
+metallic_specular = 0.11
+
 [sub_resource type="Animation" id=20]
 resource_name = "final score"
 tracks/0/type = "value"
@@ -658,7 +657,6 @@ anchor_right = 1.0
 anchor_bottom = 1.0
 script = ExtResource( 2 )
 text = "TEXT"
-text_material = SubResource( 11 )
 
 [node name="Viewport" type="Viewport" parent="."]
 size = Vector2( 256, 192 )
diff --git a/objects/player/arrow_projectile.gd b/objects/player/arrow_projectile.gd
index 1cf9aa3..26c9efa 100644
--- a/objects/player/arrow_projectile.gd
+++ b/objects/player/arrow_projectile.gd
@@ -58,7 +58,7 @@ func _on_Hitbox_area_entered(area):
 			target.die()
 			#decrease arrows if enemy killed
 			if target_group == "enemy_hitbox":
-				Game.arrows = max(0, Game.arrows - 1) # clamp arrows above 0
+				Game.arrows = max(0, Game.arrows - 1) as int # clamp arrows above 0
 		_persist_trail()
 		queue_free()
 	elif area.is_in_group("arrow"):
diff --git a/project.godot b/project.godot
index 37337f3..3639f08 100644
--- a/project.godot
+++ b/project.godot
@@ -106,6 +106,8 @@ Ngio="*res://autoloads/ngio.gd"
 
 [debug]
 
+gdscript/warnings/unused_argument=false
+gdscript/warnings/return_value_discarded=false
 shapes/collision/shape_color=Color( 0.564706, 0, 0.701961, 0.188235 )
 shapes/collision/contact_color=Color( 0.101961, 1, 0.176471, 0.8 )
 shapes/collision/draw_2d_outlines=false
diff --git a/scripts/sprite_ext.gd b/scripts/sprite_ext.gd
index 72c8e91..678f04f 100644
--- a/scripts/sprite_ext.gd
+++ b/scripts/sprite_ext.gd
@@ -38,5 +38,6 @@ func _process(delta):
 		frame = posmod(frame + int(sign(fps)), hframes * vframes)
 		if frame == stop_at_frame:
 			stopped = true
+			emit_signal("stopped")
 		if ping_pong and frame == 0:
 			fps = -fps