Sure! Here's a simple example of an 8-bit adventure game similar to The Legend of Zelda for the Nintendo Entertainment System, implemented as a single HTML file with JavaScript:
This code sets up a simple canvas element and renders a player character as a black square. The player character can be moved around using arrow keys on a smartphone or keyboard. The game continuously updates the game state and re-renders the scene to create a basic game loop.
Note: This is just a starting point and a very basic example of an 8-bit adventure game. You would need to add more features, levels, enemies, and interactions to make it a fully-fledged game similar to The Legend of Zelda.