diff --git a/GameEngine/src/main/java/gameEngine/entites/GameObject.java b/GameEngine/src/main/java/gameEngine/entites/GameObject.java
index da2e510..a8f3a7b 100644
--- a/GameEngine/src/main/java/gameEngine/entites/GameObject.java
+++ b/GameEngine/src/main/java/gameEngine/entites/GameObject.java
@@ -56,4 +56,13 @@
         }
     }
 
+    public <T extends GameComponent> T getComponent(Class<T> componentClass){
+        for (GameComponent gameComponent :gameComponents) {
+            if (componentClass.isInstance(gameComponent)) {
+                return componentClass.cast(gameComponent);
+            }
+        }
+        return null;
+    }
+
 }
\ No newline at end of file
diff --git a/GameEngine/src/main/java/gameEngine/entites/gameComponents/MoveImage.java b/GameEngine/src/main/java/gameEngine/entites/gameComponents/MoveImage.java
index ba50d62..a1930e4 100644
--- a/GameEngine/src/main/java/gameEngine/entites/gameComponents/MoveImage.java
+++ b/GameEngine/src/main/java/gameEngine/entites/gameComponents/MoveImage.java
@@ -21,6 +21,23 @@
     }
 
     public void update() {
+
+        if(Input.GetKey(GLFW_KEY_O)){
+            GameObject gameObject = (GameObject) entity;
+            TextMesh textmesh = gameObject.getComponent(TextMesh.class);
+            textmesh.setTextSize(textmesh.textSize+1);
+        }
+        if(Input.GetKey(GLFW_KEY_P)){
+            GameObject gameObject = (GameObject) entity;
+            TextMesh textmesh = gameObject.getComponent(TextMesh.class);
+            textmesh.setTextSize(textmesh.textSize-1);
+        }
+        if(Input.GetKeyDown(GLFW_KEY_I)){
+            GameObject gameObject = (GameObject) entity;
+            TextMesh textmesh = gameObject.getComponent(TextMesh.class);
+            textmesh.setText("popopo");
+        }
+
         if (Input.GetKey(GLFW_KEY_W)) {
             float y =  entity.transform.position.y;
             entity.transform.setPosition(entity.transform.position.x, y - 1, entity.transform.position.z);
diff --git a/GameEngine/src/main/java/gameEngine/entites/gameComponents/TextMesh.java b/GameEngine/src/main/java/gameEngine/entites/gameComponents/TextMesh.java
index 69784e5..457ca67 100644
--- a/GameEngine/src/main/java/gameEngine/entites/gameComponents/TextMesh.java
+++ b/GameEngine/src/main/java/gameEngine/entites/gameComponents/TextMesh.java
@@ -24,6 +24,7 @@
     public TextMesh(Entity parent, String text, int textSize) {
         this.parent = parent;
         this.text = text;
+        this.textSize = textSize;
         Font font = new Font(new java.awt.Font(SANS_SERIF, PLAIN, textSize),true);
         fontTexture = font.getTexture();
         fontGlyphs = font.getGlyphs();
@@ -31,12 +32,12 @@
     }
 
     public TextMesh(TextMesh original, Entity newParent) {
-        this.fontTexture = original.fontTexture;
-        this.fontGlyphs = original.fontGlyphs;
-        this.fontHeight = original.fontHeight;
+        this.parent = newParent;
         this.text = original.text;
         this.textSize = original.textSize;
-        this.parent = newParent;  // 新しい親オブジェクトに設定
+        this.fontGlyphs = original.fontGlyphs;
+        this.fontTexture = original.fontTexture;
+        this.fontHeight = original.fontHeight;
     }
 
 
@@ -59,6 +60,23 @@
         renderText(); // テキストの描画
     }
 
+    public void setText(String newText){
+        this.text = newText;
+        renderText();
+    }
+
+    public void setTextSize(int newTextSize) {
+        if(newTextSize < 3 || newTextSize > 127) return;
+
+        this.textSize = newTextSize;
+        Font font = new Font(new java.awt.Font(SANS_SERIF, PLAIN, textSize), true);
+        this.fontTexture = font.getTexture();
+        this.fontGlyphs = font.getGlyphs();
+        this.fontHeight = font.getFontHeight();
+
+        renderText();
+    }
+
     public void renderText() {
         // Switch to 2D rendering mode
         glMatrixMode(GL_PROJECTION);
diff --git a/GameEngine/src/main/java/gameEngine/scenes/Scene.java b/GameEngine/src/main/java/gameEngine/scenes/Scene.java
index a6f1915..8901587 100644
--- a/GameEngine/src/main/java/gameEngine/scenes/Scene.java
+++ b/GameEngine/src/main/java/gameEngine/scenes/Scene.java
@@ -62,12 +62,24 @@
         });
     }
 
-    // コンポーネントの追加メソッド
+    /**
+     * Adds a component to the specified GameObject.
+     * This method enqueues a task to add the given GameComponent to the GameObject's component list.
+     *
+     * @param gameObject The GameObject to which the component will be added.
+     * @param component  The GameComponent to be added to the GameObject.
+     */
     public void addComponentToGameObject(GameObject gameObject, GameComponent component) {
         enqueueTask(() -> gameObject.addComponent(component));
     }
 
-    // コンポーネントの削除メソッド
+    /**
+     * Removes a component from the specified GameObject.
+     * This method enqueues a task to remove the given GameComponent from the GameObject's component list.
+     *
+     * @param gameObject The GameObject from which the component will be removed.
+     * @param component  The GameComponent to be removed from the GameObject.
+     */
     public void removeComponentFromGameObject(GameObject gameObject, GameComponent component) {
         enqueueTask(() -> gameObject.removeComponent(component));
     }
@@ -94,26 +106,26 @@
             newGameObject.setName(original.getName() + "_copy");
             newGameObject.transform = new Transform(original.transform);
 
-            for (GameComponent gameComponent : original.gameComponents) {
-                if (gameComponent instanceof Mesh) {
-                    newGameObject.addComponent(new Mesh((Mesh)gameComponent.copy(), newGameObject));
-                }
-                if (gameComponent instanceof TextMesh) {
-                    newGameObject.addComponent(new TextMesh((TextMesh)gameComponent.copy(), newGameObject));
-                }
-                if (gameComponent instanceof ColorController) {
-                    newGameObject.addComponent(new ColorController());
-                }
-                if (gameComponent instanceof CopyEntity) {
-                    newGameObject.addComponent(new CopyEntity(newGameObject));
-                }
-                if (gameComponent instanceof MoveImage) {
-                    newGameObject.addComponent(new MoveImage(newGameObject));
-                }
-                if (gameComponent instanceof Physics) {
-                    newGameObject.addComponent(new Physics(newGameObject));
-                }
+
+            if (original.getComponent(Mesh.class) != null) {
+                newGameObject.addComponent(new Mesh((Mesh)original.getComponent(Mesh.class).copy(), newGameObject));
             }
+            if (original.getComponent(TextMesh.class) != null) {
+                newGameObject.addComponent(new TextMesh((TextMesh)original.getComponent(TextMesh.class).copy(), newGameObject));
+            }
+            if (original.getComponent(ColorController.class) != null) {
+                newGameObject.addComponent(new ColorController());
+            }
+            if (original.getComponent(CopyEntity.class) != null) {
+                newGameObject.addComponent(new CopyEntity(newGameObject));
+            }
+            if (original.getComponent(MoveImage.class) != null) {
+                newGameObject.addComponent(new MoveImage(newGameObject));
+            }
+            if (original.getComponent(Physics.class) != null) {
+                newGameObject.addComponent(new Physics(newGameObject));
+            }
+
 
             addEntity(newId, newGameObject);
         });