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## Game Introduction

Rainbow Snake is a visually rich and highly interactive update to the classic Snake game. Features include:
- **Fade-to-Fall Animated Interface**, featuring bouncy, ripple-effect buttons and a lively mascot.
- **Multiple Game Modes**: Bordered (classic walls) and Borderless (crossing the screen).
- **Gyroscope Control**: Tilt your device to control the snake's direction, no swiping required!
- **Customizable Experience**: Choose the difficulty level, background, and snake skin (solid, random, or rainbow).
- **Obstacles**: Randomly generated rectangular obstacles, with more obstacles as the difficulty increases.
- **Leaderboard**: Track your best scores by difficulty, with stylish, beautiful empty states and animations.

## Gameplay

1. **Start the Game**
- Launch the app and enjoy the animated home screen.
- Tap "Borderless" or "Bordered" to start a new game.

2. **Control the Snake**
- Tilt your device up, down, left, or right to change the snake's direction.
- The snake can't reverse direction immediately to ensure fairness.

3. **Eat Food**
- Guide your snake to eat orange dots to grow longer and increase your score.

4. **Avoid Collisions**
- Avoid crashing into yourself, obstacles, or (in bounded mode) walls.
- Crashing into yourself, obstacles, or walls (in bounded mode) results in a game over.

5. **Game End and Leaderboard**
- View your score, time, and difficulty after the game ends.
- Save your results to the leaderboard and view your ranking by difficulty.

6. **Settings**
- Go to the settings page to select the difficulty, background, and snake skin.
- All options are animated with instant visual feedback.

## Features
- **Rich Animation**: Every screen and button features smooth, modern animations.
- **Custom Skin**: Choose from gray, random colors, or a rainbow snake skin.
- **Dynamic Obstacles**: The higher the difficulty, the more obstacles you encounter.
- **Particle Background**: The main interface features lively animated particle effects.
- **English Code**: All screens, comments, and code are in English.