diff --git a/scripts/Cube.cs b/scripts/Cube.cs
index 9909a91..9086899 100644
--- a/scripts/Cube.cs
+++ b/scripts/Cube.cs
@@ -76,7 +76,7 @@ public partial class Cube : StaticBody2D, ITileDraggable
 		new(new Vector2I(13, 33), equip2Rect),
 	};
 
-	private bool _draggable = false;
+	private bool _draggable;
 	public bool Draggable {
 		get => _draggable;
 		set {
diff --git a/scripts/Lab.cs b/scripts/Lab.cs
index d87991d..a1195d6 100644
--- a/scripts/Lab.cs
+++ b/scripts/Lab.cs
@@ -55,7 +55,7 @@ public partial class Lab : Node2D
 		GD.Print(H.RectHasPointInclusive(r, new Vector2I(1,0)));
 	}
 
-	private Label _moneyLabel = null;
+	private Label _moneyLabel;
 	// Called every frame. 'delta' is the elapsed time since the previous frame.
 	public override void _Process(double delta)
 	{
@@ -81,7 +81,7 @@ public partial class Lab : Node2D
 		}
 	}
 
-	private bool _isDragging = false;
+	private bool _isDragging;
 	public void Pickup(ITileDraggable target) {
 		if (target == null) return;
 		_isDragging = true;
@@ -98,7 +98,7 @@ public partial class Lab : Node2D
 		DraggingTarget = null;
 		UpdateMap();
 	}
-	public ITileDraggable DraggingTarget { get; set; } = null;
+	public ITileDraggable DraggingTarget { get; set; }
 
 	public const int MapWidth = 40;
 	public const int MapHeight = 21;
diff --git a/scripts/Loader.cs b/scripts/Loader.cs
index c5e8026..df9f678 100644
--- a/scripts/Loader.cs
+++ b/scripts/Loader.cs
@@ -5,7 +5,7 @@ using System.Collections.Generic;
 public partial class Loader : Control
 {
 	private ProgressBar _progressBar;
-	private int _sceneLoaded = 0;
+	private int _sceneLoaded;
 	private List<string> _resToLoad = new (){
 		"res://scenes/lab.tscn",
 		"res://scenes/player.tscn"
diff --git a/scripts/Student.cs b/scripts/Student.cs
index cebfed9..277769a 100644
--- a/scripts/Student.cs
+++ b/scripts/Student.cs
@@ -9,7 +9,7 @@ public partial class Student : CharacterBody2D
 {
 	public float Speed { get; set; } = 8.0f;
 	public const float JumpVelocity = -400.0f;
-	[Export] public bool Use16X16Sprites { get; set; } = false;
+	[Export] public bool Use16X16Sprites { get; set; }
 
 	// --- MVP: Model Binding ---
 	public StudentModel Model { get; private set; }
@@ -34,7 +34,7 @@ public partial class Student : CharacterBody2D
 
 	private Vector2I _targetSpecialPosition;
 	private Vector2I _lastWalkablePosition;
-	private double _duration = 0;
+	private double _duration;
 	
 
 	private void SitDown(double delta) {