Sure, I can help you create a simple game based on your description. Here's an example implementation in a single HTML file using JavaScript:
Purple Guy's Adventure
Please note that this is a basic example, and it can be further enhanced with additional features, graphics, and gameplay mechanics. Additionally, the code provided only includes the framework for the game; you would need to implement the specific logic for player movement, collision detection, and touch controls to make the game fully functional.
Feel free to modify and customize the code as per your specific requirements and add more game elements if needed. Have fun developing your game!