diff --git a/frontend/game.ts b/frontend/game.ts
index 0d01dba..07fde06 100644
--- a/frontend/game.ts
+++ b/frontend/game.ts
@@ -22,6 +22,9 @@ function setup() {
     setupGame();
 }
 
+/**
+ * Sets up everything needed for the game
+ */
 function setupGame() {
     paused = true;
 
@@ -29,6 +32,7 @@ function setupGame() {
     raspberry = new Raspberry();
     raspberry.image = raspberryImagePath;
 
+    // Create all obstacles
     obstacles = [];
     obstacles.push(new Obstacle(
         new Position(width, 0),
@@ -49,7 +53,8 @@ function setupGame() {
         pipeImagePath,
     ));
 
-    obstacles.forEach((obstacle) => obstacle.resetPosition(false));
+    // Randomize position of all Obstacles
+    obstacles.forEach((obstacle) => obstacle.randomizeHeight());
 }
 
 function draw() {
@@ -59,6 +64,7 @@ function draw() {
     }
     raspberry.draw();
     
+    // Reset Obstacles Position
     obstacles.forEach((obstacle) => {
         if (!paused) {
             obstacle.update();
@@ -68,6 +74,7 @@ function draw() {
         obstacle.draw();
     });
 
+    // Check for collisions with pipes and set score
     if (!paused) {
         if (obstacles[0].collides(raspberry)) {
             setupGame();
@@ -75,21 +82,29 @@ function draw() {
         checkRaspberryScore();
         obstacles[0].draw();
     }
+    
     push();
     fill(200, 100, 60);
     text(score, width / 2, height / 10, width, height);
     pop();
 }
 
+/**
+ * Check if obstacle positions should be reset and reset if so
+ * @param obstacle obstacle to check
+ */
 function checkObstacleReset(obstacle: Obstacle) {
     if (obstacle.position.x < -obstacleWidth) {
-        obstacle.resetPosition(true);
+        obstacle.resetPosition();
         obstacles.shift();
         obstacles.push(obstacle);
         hasAlreadyScored = false;
     }
 }
 
+/**
+ * Check if the raspberry should score and set score
+ */
 function checkRaspberryScore() {
     if ((obstacles[0].position.x + obstacles[0].width / 2) < (raspberry.position.x + raspberry.width / 2)
         && !hasAlreadyScored) {
@@ -99,9 +114,12 @@ function checkRaspberryScore() {
 }
 
 function keyPressed() {
+    // Jump
     if (key.toLowerCase() == "k") {
         raspberry.boost();
     }
+    
+    // Pause the Game
     if (key == "Escape") {
         paused = !paused;
     } else if (paused) {
diff --git a/frontend/models/Collidable.ts b/frontend/models/Collidable.ts
index 066452f..46f46d9 100644
--- a/frontend/models/Collidable.ts
+++ b/frontend/models/Collidable.ts
@@ -1,3 +1,7 @@
 interface Collidable {
+    /**
+     * Determines when two entities collide
+     * @param o other entity
+     */
     collides(o: Entity): boolean;
 }
\ No newline at end of file
diff --git a/frontend/models/Entity.ts b/frontend/models/Entity.ts
index 58d7f99..745f71a 100644
--- a/frontend/models/Entity.ts
+++ b/frontend/models/Entity.ts
@@ -37,9 +37,15 @@ abstract class Entity {
     set showHitbox(value: boolean) {
         this._showHitbox = value;
     }
+    //endregion
 
-//endregion
-
+    /**
+     * Constructs the Entity
+     * @param position starting Position
+     * @param width entity width
+     * @param height entity height
+     * @param fill fill color
+     */
     protected constructor(position: Position, width: number, height: number, fill: number) {
         this.position = position;
         this.width = width;
diff --git a/frontend/models/Obstacle.ts b/frontend/models/Obstacle.ts
index 39df256..e12ad11 100644
--- a/frontend/models/Obstacle.ts
+++ b/frontend/models/Obstacle.ts
@@ -8,8 +8,12 @@ class Obstacle extends Entity implements Collidable {
     private static startX: number;
 
     /**
-     * Constructs the Obstacle using the top and bottom Pipe
+     * Constructs the Obstacle with the given image
      * (fill is not used here)
+     * @param position starting position of the obstacle
+     * @param obstacleWidth width of the obstacle
+     * @param obstacleHeight height of the obstacle
+     * @param pipeImagePath path to the image to be used
      */
     constructor(position: Position, obstacleWidth: number, obstacleHeight: number, pipeImagePath: string) {
         super(position, obstacleWidth, obstacleHeight, 0);
@@ -22,18 +26,32 @@ class Obstacle extends Entity implements Collidable {
         Obstacle.startX = width;
     }
 
-    public resetPosition(resetX: boolean): void {
+    /**
+     * Resets the position of the obstacle to the Obstacle.startX variable
+     * Randomises the height of the pipes using the padding variable
+     */
+    public resetPosition(): void {
+        this.randomizeHeight();
+
+        this.pipeBottom.position.x = Obstacle.startX;
+        this.pipeTop.position.x = Obstacle.startX;
+    }
+
+    /**
+     * Randomizes the height of the pipes
+     */
+    public randomizeHeight(): void {
         this.pipeTop.height = this.randomRange(this.padding, height - this.padding - this.distanceBetweenPipes);
         this.pipeTop.position.y = 0;
         this.pipeBottom.position.y = this.pipeTop.height + this.distanceBetweenPipes;
         this.pipeBottom.height = height - this.pipeTop.height - this.padding;
-
-        if (resetX) {
-            this.pipeBottom.position.x = Obstacle.startX;
-            this.pipeTop.position.x = Obstacle.startX;
-        }
     }
 
+    /**
+     * Creates a random number between the min and max parameter
+     * @param min minimum number
+     * @param max maximum number
+     */
     private randomRange(min: number, max: number): number {
         return Math.random() * (max - min) + min;
     }
@@ -49,6 +67,10 @@ class Obstacle extends Entity implements Collidable {
         this.pipeBottom.draw();
     }
 
+    /**
+     * Determines when the obstacle is colliding with another entity
+     * @param o other entity
+     */
     public collides(o: Entity): boolean {
         return this.pipeTop.collides(o) || this.pipeBottom.collides(o);
     }
diff --git a/frontend/models/Pipe.ts b/frontend/models/Pipe.ts
index b19489e..26e402a 100644
--- a/frontend/models/Pipe.ts
+++ b/frontend/models/Pipe.ts
@@ -9,9 +9,14 @@ class Pipe extends Entity implements Collidable {
     set image(path: string) {
         this._image = loadImage(path);
     }
-
     //endregion
 
+    /**
+     * Constructs the pipe
+     * @param positionX starting x-Position 
+     * @param width pipe width
+     * @param height pipe height
+     */
     constructor(positionX: number, width: number, height: number) {
         super(new Position(positionX, 0), width, height, 0);
     }
@@ -32,6 +37,10 @@ class Pipe extends Entity implements Collidable {
         pop();
     }
 
+    /**
+     * Determines when the pipe is colliding with another entity
+     * @param o other entity
+     */
     collides(o: Entity): boolean {
         return this.position.x < (o.position.x + o.width) && //inside left border
             (this.position.x + this.width) > o.position.x && //but not outside right border
diff --git a/frontend/models/Position.ts b/frontend/models/Position.ts
index 6c7e28b..58b58ae 100644
--- a/frontend/models/Position.ts
+++ b/frontend/models/Position.ts
@@ -20,6 +20,11 @@ class Position {
     }
     //endregion
 
+    /**
+     * Constructs the position
+     * @param x x-Position
+     * @param y y-Position
+     */
     constructor(x: number, y: number) {
         this._x = x;
         this._y = y;
diff --git a/frontend/models/Raspberry.ts b/frontend/models/Raspberry.ts
index c8a90d6..32fcb3e 100644
--- a/frontend/models/Raspberry.ts
+++ b/frontend/models/Raspberry.ts
@@ -6,8 +6,6 @@ class Raspberry extends Entity {
     private static readonly maxVelocity: number = 100;
 
     //region Getter & Setter
-
-
     get velocity(): number {
         return this._velocity;
     }
@@ -24,8 +22,11 @@ class Raspberry extends Entity {
         this._image = loadImage(path);
     }
 
-//endregion
+    //endregion
 
+    /**
+     * Constructs the Raspberry with fixed sizes
+     */
     constructor() {
         super(new Position(width / 6, height / 2), 180, 70, 0);
     }
@@ -35,14 +36,17 @@ class Raspberry extends Entity {
         this.forceBoundaries();
     }
 
+    /**
+     * Lets the Raspberry fall to the ground
+     */
     private applyGravity(): void {
         this.velocity += this.gravity;
         this.position.y += this.velocity;
     }
 
     private forceBoundaries(): void {
-        if (this.position.y+this.height > height) {
-            this.position.y = height-this.height;
+        if (this.position.y + this.height > height) {
+            this.position.y = height - this.height;
             this.velocity = 0;
         }
 
@@ -51,7 +55,7 @@ class Raspberry extends Entity {
             this.velocity = 0;
         }
     }
-
+    
     public boost(): void {
         this.velocity += this.lift;
     }
@@ -60,7 +64,7 @@ class Raspberry extends Entity {
         push();
         noFill();
         translate(this.position.x, this.position.y);
-        rotate((PI/2)*(this.velocity/Raspberry.maxVelocity));
+        rotate((PI / 2) * (this.velocity / Raspberry.maxVelocity));
         image(this.image, 0, 0, this.width, this.height);
         if (!this.showHitbox) {
             noStroke();