diff --git a/.idea/.idea.1bit-game-jam/.idea/.gitignore b/.idea/.idea.1bit-game-jam/.idea/.gitignore
new file mode 100644
index 0000000..f16178a
--- /dev/null
+++ b/.idea/.idea.1bit-game-jam/.idea/.gitignore
@@ -0,0 +1,13 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Rider ignored files
+/projectSettingsUpdater.xml
+/contentModel.xml
+/.idea.1bit-game-jam.iml
+/modules.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/.idea.1bit-game-jam/.idea/encodings.xml b/.idea/.idea.1bit-game-jam/.idea/encodings.xml
new file mode 100644
index 0000000..df87cf9
--- /dev/null
+++ b/.idea/.idea.1bit-game-jam/.idea/encodings.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding" addBOMForNewFiles="with BOM under Windows, with no BOM otherwise" />
+</project>
\ No newline at end of file
diff --git a/.idea/.idea.1bit-game-jam/.idea/indexLayout.xml b/.idea/.idea.1bit-game-jam/.idea/indexLayout.xml
new file mode 100644
index 0000000..7b08163
--- /dev/null
+++ b/.idea/.idea.1bit-game-jam/.idea/indexLayout.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="UserContentModel">
+    <attachedFolders />
+    <explicitIncludes />
+    <explicitExcludes />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/.idea.1bit-game-jam/.idea/vcs.xml b/.idea/.idea.1bit-game-jam/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/.idea.1bit-game-jam/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/1bit-game-jam.csproj b/1bit-game-jam.csproj
new file mode 100644
index 0000000..b63e5d0
--- /dev/null
+++ b/1bit-game-jam.csproj
@@ -0,0 +1,7 @@
+<Project Sdk="Godot.NET.Sdk/4.1.1">
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <EnableDynamicLoading>true</EnableDynamicLoading>
+    <RootNamespace>bitgamejam</RootNamespace>
+  </PropertyGroup>
+</Project>
\ No newline at end of file
diff --git a/1bit-game-jam.sln b/1bit-game-jam.sln
new file mode 100644
index 0000000..8fb9902
--- /dev/null
+++ b/1bit-game-jam.sln
@@ -0,0 +1,19 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "1bit-game-jam", "1bit-game-jam.csproj", "{C33BED68-271C-4720-9764-1F965577E38A}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+	Debug|Any CPU = Debug|Any CPU
+	ExportDebug|Any CPU = ExportDebug|Any CPU
+	ExportRelease|Any CPU = ExportRelease|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{C33BED68-271C-4720-9764-1F965577E38A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C33BED68-271C-4720-9764-1F965577E38A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C33BED68-271C-4720-9764-1F965577E38A}.ExportDebug|Any CPU.ActiveCfg = ExportDebug|Any CPU
+		{C33BED68-271C-4720-9764-1F965577E38A}.ExportDebug|Any CPU.Build.0 = ExportDebug|Any CPU
+		{C33BED68-271C-4720-9764-1F965577E38A}.ExportRelease|Any CPU.ActiveCfg = ExportRelease|Any CPU
+		{C33BED68-271C-4720-9764-1F965577E38A}.ExportRelease|Any CPU.Build.0 = ExportRelease|Any CPU
+	EndGlobalSection
+EndGlobal
diff --git a/prefabs/player.tscn b/prefabs/player.tscn
index 1ca25fc..23fe052 100644
--- a/prefabs/player.tscn
+++ b/prefabs/player.tscn
@@ -1,11 +1,13 @@
-[gd_scene load_steps=3 format=3 uid="uid://bhulqhxesd5gc"]
+[gd_scene load_steps=4 format=3 uid="uid://bhulqhxesd5gc"]
 
+[ext_resource type="Script" path="res://scripts/Player.cs" id="1_1vpun"]
 [ext_resource type="SpriteFrames" uid="uid://cfdng3tdv65p6" path="res://sprites/player/player.tres" id="1_8jl58"]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_5hhj3"]
 size = Vector2(15, 15)
 
 [node name="Player" type="CharacterBody2D"]
+script = ExtResource("1_1vpun")
 
 [node name="CollisionShape2D" type="CollisionShape2D" parent="."]
 position = Vector2(0.5, 7.5)
diff --git a/project.godot b/project.godot
index cd18e09..a6dc99f 100644
--- a/project.godot
+++ b/project.godot
@@ -12,10 +12,26 @@ config_version=5
 
 config/name="1bit-game-jam"
 run/main_scene="res://scenes/main_scene.tscn"
-config/features=PackedStringArray("4.1", "Mobile")
+config/features=PackedStringArray("4.1", "C#", "Mobile")
 boot_splash/bg_color=Color(0.141176, 0.141176, 0.141176, 1)
 config/icon="res://icon.svg"
 
+[display]
+
+window/size/viewport_width=256
+window/size/viewport_height=192
+window/stretch/mode="viewport"
+
+[dotnet]
+
+project/assembly_name="1bit-game-jam"
+
+[layer_names]
+
+2d_render/layer_1="Dark World"
+2d_render/layer_2="Light World"
+2d_render/layer_3="UI"
+
 [rendering]
 
 textures/canvas_textures/default_texture_filter=0
@@ -23,5 +39,7 @@ renderer/rendering_method="mobile"
 textures/lossless_compression/force_png=true
 textures/default_filters/anisotropic_filtering_level=0
 anti_aliasing/screen_space_roughness_limiter/enabled=false
+environment/glow/upscale_mode=0
+environment/defaults/default_clear_color=Color(0, 0, 0, 1)
 2d/snap/snap_2d_transforms_to_pixel=true
 2d/snap/snap_2d_vertices_to_pixel=true
diff --git a/scenes/main_scene.tscn b/scenes/main_scene.tscn
index 4840581..b2d7764 100644
--- a/scenes/main_scene.tscn
+++ b/scenes/main_scene.tscn
@@ -1,5 +1,49 @@
-[gd_scene format=3 uid="uid://dhn7yt46fyac8"]
+[gd_scene load_steps=6 format=3 uid="uid://dhn7yt46fyac8"]
+
+[ext_resource type="PackedScene" uid="uid://bhulqhxesd5gc" path="res://prefabs/player.tscn" id="1_65a7v"]
+[ext_resource type="Texture2D" uid="uid://py6qiu3rm7cu" path="res://sprites/brickwall.png" id="2_edqdh"]
+[ext_resource type="Texture2D" uid="uid://dlbl6d4yghvht" path="res://sprites/mask.png" id="3_8o315"]
+[ext_resource type="Material" uid="uid://xuvxq5hy1dt" path="res://shaders/light_shader_material.tres" id="4_ro05e"]
+
+[sub_resource type="CanvasItemMaterial" id="CanvasItemMaterial_wg1ao"]
+light_mode = 2
 
 [node name="Root" type="Node2D"]
 
-[node name="DarkCamera2D" type="Camera2D" parent="."]
+[node name="Player" parent="." node_paths=PackedStringArray("FlashlightUI", "FlashlightWorld") instance=ExtResource("1_65a7v")]
+position = Vector2(19, 4)
+FlashlightUI = NodePath("../CanvasLayer/FlashlightUI")
+FlashlightWorld = NodePath("../Camera2D/PointLight2D")
+
+[node name="TestWall" type="Sprite2D" parent="."]
+light_mask = 2
+material = SubResource("CanvasItemMaterial_wg1ao")
+position = Vector2(-108, -74)
+texture = ExtResource("2_edqdh")
+
+[node name="CanvasLayer" type="CanvasLayer" parent="."]
+
+[node name="FlashlightUI" type="Sprite2D" parent="CanvasLayer"]
+clip_children = 1
+texture = ExtResource("3_8o315")
+
+[node name="InvertRect" type="ColorRect" parent="CanvasLayer/FlashlightUI"]
+material = ExtResource("4_ro05e")
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+offset_left = -32.0
+offset_top = -32.0
+offset_right = -32.0
+offset_bottom = -32.0
+grow_horizontal = 2
+grow_vertical = 2
+metadata/_edit_use_anchors_ = true
+
+[node name="Camera2D" type="Camera2D" parent="."]
+
+[node name="PointLight2D" type="PointLight2D" parent="Camera2D"]
+energy = 16.0
+blend_mode = 2
+range_item_cull_mask = 2
+texture = ExtResource("3_8o315")
diff --git a/scripts/Player.cs b/scripts/Player.cs
new file mode 100644
index 0000000..0182dcd
--- /dev/null
+++ b/scripts/Player.cs
@@ -0,0 +1,52 @@
+using Godot;
+using System;
+
+public partial class Player : CharacterBody2D
+{
+    [Export] public Node2D FlashlightUI;
+    [Export] public Node2D FlashlightWorld;
+
+    [Export] public const float Speed = 50.0f;
+
+    protected AnimatedSprite2D Sprite;
+
+    public override void _Ready()
+    {
+        base._Ready();
+
+        Sprite = (AnimatedSprite2D)FindChild("AnimatedSprite2D");
+    }
+
+    public override void _PhysicsProcess(double delta)
+    {
+        Vector2 velocity = Velocity;
+
+        // Get the input direction and handle the movement/deceleration.
+        // As good practice, you should replace UI actions with custom gameplay actions.
+        Vector2 direction = Input.GetVector("ui_left", "ui_right", "ui_up", "ui_down");
+        if (direction != Vector2.Zero)
+        {
+            velocity.X = direction.X * Speed;
+            velocity.Y = direction.Y * Speed;
+        }
+        else
+        {
+            velocity.X = Mathf.MoveToward(Velocity.X, 0, Speed);
+            velocity.Y = Mathf.MoveToward(Velocity.Y, 0, Speed);
+        }
+
+        Velocity = velocity;
+        MoveAndSlide();
+    }
+
+    public override void _Input(InputEvent @event)
+    {
+        base._Input(@event);
+
+        if (@event is InputEventMouseMotion eventMouseMotion)
+        {
+            FlashlightUI.Position = eventMouseMotion.Position;
+            FlashlightWorld.Position = eventMouseMotion.Position - new Vector2(128F, 96F);
+        }
+    }
+}
\ No newline at end of file
diff --git a/shaders/light_shader.gdshader b/shaders/light_shader.gdshader
new file mode 100644
index 0000000..de69663
--- /dev/null
+++ b/shaders/light_shader.gdshader
@@ -0,0 +1,7 @@
+shader_type canvas_item;
+
+uniform sampler2D screen_texture : hint_screen_texture, repeat_disable, filter_nearest;
+
+void fragment() {
+        COLOR = vec4(vec3(1,1,1) - texture(screen_texture, SCREEN_UV).rgb, 1);
+}
\ No newline at end of file
diff --git a/shaders/light_shader_material.tres b/shaders/light_shader_material.tres
new file mode 100644
index 0000000..3cd56e3
--- /dev/null
+++ b/shaders/light_shader_material.tres
@@ -0,0 +1,6 @@
+[gd_resource type="ShaderMaterial" load_steps=2 format=3 uid="uid://xuvxq5hy1dt"]
+
+[ext_resource type="Shader" path="res://shaders/light_shader.gdshader" id="1_o757w"]
+
+[resource]
+shader = ExtResource("1_o757w")
diff --git a/sprites/mask.png b/sprites/mask.png
new file mode 100644
index 0000000..8162144
Binary files /dev/null and b/sprites/mask.png differ
diff --git a/sprites/mask.png.import b/sprites/mask.png.import
new file mode 100644
index 0000000..f7f0c9e
--- /dev/null
+++ b/sprites/mask.png.import
@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://dlbl6d4yghvht"
+path="res://.godot/imported/mask.png-5403fce0f0c69d7184a2784f953221c8.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://sprites/mask.png"
+dest_files=["res://.godot/imported/mask.png-5403fce0f0c69d7184a2784f953221c8.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+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/sprites/mask_inv.png b/sprites/mask_inv.png
new file mode 100644
index 0000000..a28539d
Binary files /dev/null and b/sprites/mask_inv.png differ
diff --git a/sprites/mask_inv.png.import b/sprites/mask_inv.png.import
new file mode 100644
index 0000000..cd93111
--- /dev/null
+++ b/sprites/mask_inv.png.import
@@ -0,0 +1,34 @@
+[remap]
+
+importer="texture"
+type="CompressedTexture2D"
+uid="uid://cxnd43vcss7rm"
+path="res://.godot/imported/mask_inv.png-8ac95d87dd1b42a71c6dd5d5cfce4783.ctex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://sprites/mask_inv.png"
+dest_files=["res://.godot/imported/mask_inv.png-8ac95d87dd1b42a71c6dd5d5cfce4783.ctex"]
+
+[params]
+
+compress/mode=0
+compress/high_quality=false
+compress/lossy_quality=0.7
+compress/hdr_compression=1
+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