• High coupling: The renderer directly interacts with game objects, which could be improved for better modularity.
• Lack of a clear rendering pipeline: The main renderGame function handles multiple responsibilities.
• Hardcoded visual styles: Many visual properties are directly set in the rendering functions.
• Repeated code: Some drawing operations, like setting up the canvas context, are repeated.

Suggested improvements:

Implement a Renderer class:
Create a Renderer class to encapsulate all rendering logic. This would allow for better state management and potential optimization of rendering operations.