diff --git a/ROADMAP.md b/ROADMAP.md
index 1bfa281..f10cd81 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -3,11 +3,15 @@
 This is a living document that tracks the development progress of the AI Snake Game project.
 
 ## Current Status
-Last Updated: [Food System Implementation]
-- Added Food class with spawning mechanics
-- Integrated food system with main game loop
-- Implemented basic scoring system
-- Added game over screen with score display
+Last Updated: [Restart Functionality Implementation]
+- Added game restart functionality
+- Added "Press any key to restart" message
+- Implemented game state reset
+- Previous updates:
+  - Added Food class with spawning mechanics
+  - Integrated food system with main game loop
+  - Implemented basic scoring system
+  - Added game over screen with score display
 
 ## Phase 1: Project Setup and Basic Structure ✅
 - [x] Create project structure and virtual environment
@@ -16,7 +20,7 @@ Last Updated: [Food System Implementation]
 - [x] Create basic project documentation (README.md)
 - [x] Create living roadmap document
 
-## Phase 2: Core Game Development 🔄
+## Phase 2: Core Game Development ✅
 - [x] Implement basic game window using Pygame
 - [x] Create Snake class with movement mechanics
 - [x] Implement food spawning system
@@ -29,9 +33,9 @@ Last Updated: [Food System Implementation]
   - [ ] Add high score tracking
 - [x] Add game over conditions
   - [x] Implement game over state transition
-  - [ ] Add restart functionality
+  - [x] Add restart functionality
 
-## Phase 3: Game Polish and UI
+## Phase 3: Game Polish and UI 🔄
 - [ ] Add main menu interface
   - [ ] Create menu layout
   - [ ] Add game mode selection
@@ -77,16 +81,13 @@ Last Updated: [Food System Implementation]
 - [ ] Final testing and refinements
 
 ## Next Steps
-1. Add restart functionality
-   - Implement game restart on key press
-   - Reset score and snake position
-2. Create main menu interface
+1. Create main menu interface
    - Design menu layout
    - Implement menu navigation
-3. Add high score system
+2. Add high score system
    - Implement score persistence
    - Add high score display
-4. Add visual and sound effects
+3. Add visual and sound effects
    - Implement basic animations
    - Add game sounds
 
diff --git a/src/game.py b/src/game.py
index 1f44798..9727fde 100644
--- a/src/game.py
+++ b/src/game.py
@@ -24,15 +24,17 @@ class Game:
         
         # Game objects
         self.block_size = 20
-        self.snake = Snake((self.width // 2, self.height // 2), self.block_size)
-        self.food = Food(self.block_size)
-        
-        # Spawn initial food
-        self.food.spawn(self.width, self.height, self.snake.body)
+        self.reset_game()
         
         # Game state
         self.state = GameState.PLAYING  # Changed to start in playing state for now
         self.running = True
+
+    def reset_game(self):
+        """Reset the game state for a new game"""
+        self.snake = Snake((self.width // 2, self.height // 2), self.block_size)
+        self.food = Food(self.block_size)
+        self.food.spawn(self.width, self.height, self.snake.body)
         self.score = 0
 
     def handle_events(self):
@@ -55,6 +57,10 @@ class Game:
                         self.snake.change_direction(Direction.LEFT)
                     elif event.key == pygame.K_RIGHT:
                         self.snake.change_direction(Direction.RIGHT)
+                elif self.state == GameState.GAME_OVER:
+                    # Any key to restart in game over state
+                    self.reset_game()
+                    self.state = GameState.PLAYING
 
     def update(self):
         if self.state == GameState.PLAYING:
@@ -95,12 +101,15 @@ class Game:
             font = pygame.font.Font(None, 74)
             text = font.render('Game Over!', True, (255, 0, 0))
             score_text = font.render(f'Score: {self.score}', True, (255, 255, 255))
+            restart_text = font.render('Press any key to restart', True, (255, 255, 255))
             
             text_rect = text.get_rect(center=(self.width//2, self.height//2 - 50))
             score_rect = score_text.get_rect(center=(self.width//2, self.height//2 + 50))
+            restart_rect = restart_text.get_rect(center=(self.width//2, self.height//2 + 150))
             
             self.screen.blit(text, text_rect)
             self.screen.blit(score_text, score_rect)
+            self.screen.blit(restart_text, restart_rect)
         
         # Update display
         pygame.display.flip()