diff --git a/Bladder.gd b/Bladder.gd
new file mode 100644
index 0000000..07e0adb
--- /dev/null
+++ b/Bladder.gd
@@ -0,0 +1,13 @@
+extends Sprite2D
+
+var fill;
+ 
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	material.set("fill",clamp(fill, 0.0, 1.0))
+	
diff --git a/Images/Bladder.png b/Images/Bladder.png
new file mode 100644
index 0000000..36ea8b2
Binary files /dev/null and b/Images/Bladder.png differ
diff --git a/Images/Bladder.png.import b/Images/Bladder.png.import
new file mode 100644
index 0000000..4c54d30
--- /dev/null
+++ b/Images/Bladder.png.import
@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://b25de1d0yyuji"
+path="res://.godot/imported/Bladder.png-67828a0d166717b5269a348903393516.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://Images/Bladder.png"
+dest_files=["res://.godot/imported/Bladder.png-67828a0d166717b5269a348903393516.ctex"]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/bptc_ldr=0
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
diff --git a/Images/BladderHollow.png b/Images/BladderHollow.png
new file mode 100644
index 0000000..d95a175
Binary files /dev/null and b/Images/BladderHollow.png differ
diff --git a/Images/BladderHollow.png.import b/Images/BladderHollow.png.import
new file mode 100644
index 0000000..140bd62
--- /dev/null
+++ b/Images/BladderHollow.png.import
@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://d2nqjxofehkum"
+path="res://.godot/imported/BladderHollow.png-e4fd50cc80f9ae5a6291ebfabb73f55a.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://Images/BladderHollow.png"
+dest_files=["res://.godot/imported/BladderHollow.png-e4fd50cc80f9ae5a6291ebfabb73f55a.ctex"]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+compress/bptc_ldr=0
+compress/normal_map=0
+compress/channel_pack=0
+mipmaps/generate=false
+mipmaps/limit=-1
+roughness/mode=0
+roughness/src_normal=""
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/normal_map_invert_y=false
+process/hdr_as_srgb=false
+process/hdr_clamp_exposure=false
+process/size_limit=0
+detect_3d/compress_to=1
diff --git a/bladder.gdshader b/bladder.gdshader
new file mode 100644
index 0000000..11691d9
--- /dev/null
+++ b/bladder.gdshader
@@ -0,0 +1,13 @@
+shader_type canvas_item;
+
+uniform vec4 tex;
+uniform float fill;
+
+void fragment() {
+
+	if ((fill + 0.5) * 0.5 >= 1.0 - UV.y)
+		COLOR = vec4(0.1, 0.4, 0.4, 1.0);
+	
+	COLOR.a = tex.a;
+}
+
diff --git a/hud.gd b/hud.gd
new file mode 100644
index 0000000..69a7084
--- /dev/null
+++ b/hud.gd
@@ -0,0 +1,11 @@
+extends Control
+
+
+# Called when the node enters the scene tree for the first time.
+func _ready():
+	pass # Replace with function body.
+
+
+# Called every frame. 'delta' is the elapsed time since the previous frame.
+func _process(delta):
+	$Bladder.fill = 0.3; # <-- value goes here!
diff --git a/hud.gdshader b/hud.gdshader
new file mode 100644
index 0000000..f8d81eb
--- /dev/null
+++ b/hud.gdshader
@@ -0,0 +1,9 @@
+shader_type canvas_item;
+
+uniform float fill;
+
+void fragment() {
+	if ((fill + 0.5) * 0.5 >= 1.0 - UV.y)
+		COLOR = vec4(0.1, 0.4, 0.4, texture(TEXTURE, UV).a);
+	else COLOR = texture(TEXTURE, UV);
+}
diff --git a/hud.tscn b/hud.tscn
new file mode 100644
index 0000000..1520406
--- /dev/null
+++ b/hud.tscn
@@ -0,0 +1,33 @@
+[gd_scene load_steps=7 format=3 uid="uid://3n1o2mbywp8w"]
+
+[ext_resource type="Shader" path="res://hud.gdshader" id="1_0s6h4"]
+[ext_resource type="Script" path="res://hud.gd" id="1_jkk58"]
+[ext_resource type="Texture2D" uid="uid://b25de1d0yyuji" path="res://Images/Bladder.png" id="2_fa8jy"]
+[ext_resource type="Script" path="res://Bladder.gd" id="3_tb31y"]
+[ext_resource type="Texture2D" uid="uid://d2nqjxofehkum" path="res://Images/BladderHollow.png" id="4_lbxgy"]
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_0gcor"]
+shader = ExtResource("1_0s6h4")
+shader_parameter/fill = 0.0
+
+[node name="HUD" type="Control"]
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+offset_left = 198.0
+offset_top = 205.0
+offset_right = 198.0
+offset_bottom = 205.0
+script = ExtResource("1_jkk58")
+
+[node name="Bladder" type="Sprite2D" parent="."]
+material = SubResource("ShaderMaterial_0gcor")
+scale = Vector2(4, 4)
+texture = ExtResource("2_fa8jy")
+script = ExtResource("3_tb31y")
+
+[node name="BladderHollow" type="Sprite2D" parent="."]
+position = Vector2(-2, 0)
+scale = Vector2(4, 4)
+texture = ExtResource("4_lbxgy")