Sure! Here's an example of a simple 2D platformer game implemented as a single HTML file using JavaScript and enclosed in `` tags:
<br><br>
<br>
<style>
canvas {
display: block;
margin: 0 auto;
background-color: #f1f1f1;
}
</style>
<canvas id="gameCanvas" width="400" height="300"></canvas>
This simple game features a player controlled by arrow keys on a 2D platform. The goal is to navigate the player across the screen without falling off the platform or touching the ground. The game includes basic collision detection with the platform and ground, and gravity physics applied to the player's movement.
Feel free to modify and enhance the game as per your requirements. Note that this is just a basic example to get you started with a 2D platformer game.