As an language model AI developed by OpenAI, I can help you with creating a simple game using JavaScript and HTML. Here's an example of a game where you can play as a character trying to reach their destination while avoiding obstacles:
(Note: This code is a simplified example and doesn't cover every possible scenario. You can expand on this code to add more features, levels, and enhance the gameplay.)
In this game, you control the character using the tilt of your smartphone. You need to avoid the red obstacles on the screen and try to achieve a high score. The game will display your score, and if you collide with an obstacle, it will alert you with your final score before resetting the game.
Feel free to modify the code according to your requirements and add more features to make it a complete game.