diff --git a/src/core/CoreData.h b/src/core/CoreData.h
index c219609..1d65769 100644
--- a/src/core/CoreData.h
+++ b/src/core/CoreData.h
@@ -2,8 +2,9 @@
  
 #include "ui/managers/debug/DebugData.h"
 #include "input/InputState.h"
-
+#include "scenes/base/SceneEvent.h"
 struct CoreData {
     DebugData debugData;
     InputState inputState;
+    SceneType sceneType = SceneType::MainMenuScene;
 };
\ No newline at end of file
diff --git a/src/core/GameApplication.cpp b/src/core/GameApplication.cpp
index 365a1e2..84ba3fe 100644
--- a/src/core/GameApplication.cpp
+++ b/src/core/GameApplication.cpp
@@ -31,7 +31,7 @@ bool GameApplication::initialize() {
    
     
     // 输入管理
-    m_inputManager = std::make_unique<InputManager>(m_coreData.inputState);
+    m_inputManager = std::make_unique<InputManager>(m_coreData);
     // 窗口管理
     m_windowManager = std::make_unique<WindowManager>();
     
diff --git a/src/input/InputManager.cpp b/src/input/InputManager.cpp
index e8163e9..422d3ae 100644
--- a/src/input/InputManager.cpp
+++ b/src/input/InputManager.cpp
@@ -1,7 +1,8 @@
 #include "InputManager.h"
 
-InputManager::InputManager(InputState& inputState) :
-    m_currentInputState(inputState) 
+InputManager::InputManager(CoreData& coreData) :
+    m_currentInputState(coreData.inputState),
+    m_coreData(coreData) 
 {
 
 }
@@ -31,10 +32,49 @@ SDL_AppResult InputManager::handleInputEvent(const SDL_Event* event) {
                                                         static_cast<float>(event->motion.y)};
             break;
         case SDL_EVENT_KEY_DOWN:
-            if (event->key.key == SDLK_F11) {
-                m_currentInputState.isFullscreen = !m_currentInputState.isFullscreen;
+            switch(event->key.key) {
+                case SDLK_F11:
+                    m_currentInputState.isFullscreen = !m_currentInputState.isFullscreen;
+                    break;
+                case SDLK_B:
+                    if (m_coreData.sceneType == SceneType::MainMenuScene) {
+                        m_isStartBadApple = true;
+                        m_badapple.push_back('b');
+                    }
+                    
+                    break;
+                case SDLK_A:
+                    if (m_isStartBadApple) {
+                        m_badapple.push_back('a');
+                    }
+                    break;
+                case SDLK_D:
+                    if (m_isStartBadApple) {
+                        m_badapple.push_back('d');
+                    }
+                    break;
+                case SDLK_P:
+                    if (m_isStartBadApple) {
+                        m_badapple.push_back('p');
+                    }
+                    break;
+                case SDLK_L:
+                    if (m_isStartBadApple) {
+                        m_badapple.push_back('l');
+                    }
+                    break;
+                case SDLK_E:
+                    if (m_isStartBadApple) {
+                        m_badapple.push_back('e');
+                        if (m_badapple == "badapple") {
+                            m_currentInputState.isBadApplePress = true;
+                        }
+                        m_badapple.clear();
+                    }
+                    break;
             }
             break;
+        
     }
     return SDL_APP_CONTINUE;
 }
diff --git a/src/input/InputManager.h b/src/input/InputManager.h
index 9934791..cedd9a6 100644
--- a/src/input/InputManager.h
+++ b/src/input/InputManager.h
@@ -1,14 +1,18 @@
 #pragma once
 #include <SDL3/SDL.h>
 
-
+#include "core/CoreData.h"
 #include "InputState.h"
 class InputManager {
 public:
-    InputManager(InputState& inputState);
+    InputManager(CoreData& coreData);
     SDL_AppResult handleInputEvent(const SDL_Event* event);
     
     InputState GetInputState() const;
 private:
     InputState& m_currentInputState;
+    CoreData& m_coreData;
+    bool m_isStartBadApple = false;
+
+    std::string m_badapple;   // 彩蛋
 };
\ No newline at end of file
diff --git a/src/input/InputState.h b/src/input/InputState.h
index 73f6a52..7c9f7fc 100644
--- a/src/input/InputState.h
+++ b/src/input/InputState.h
@@ -1,6 +1,7 @@
 #pragma once
 #include <utility>
 #include <glm/glm.hpp>
+#include <string>
 struct InputState
 {
     glm::vec2 mouseCilckOn;
@@ -8,4 +9,5 @@ struct InputState
     glm::vec2 mouseCurrentPosition;
     glm::ivec2 mouseCurrentLogicalPosition;
     bool isFullscreen = false;
+    bool isBadApplePress = false;
 };