Sure! Here's an example of a simple game implemented as a single HTML file using JavaScript, enclosed in script tags:
Roblox Game
In this game, a red square represents the character. It moves diagonally within the boundaries of the canvas. When it hits the edges, it bounces back in the opposite direction. The game loop ensures that the game continuously updates and redraws the canvas.
Please note that this is a very basic game example, and you can extend it further by adding gameplay elements, scoring, levels, and more.