Sure! Here is an example of a simple game implemented as a single HTML file using JavaScript, enclosed in `` tags:
<br><br>
<br>
<style>
canvas {
border: 1px solid #000;
}
</style>
<canvas id="gameCanvas" width="400" height="400"></canvas>
This game showcases a particle that can be controlled by touching the screen on a smartphone. The particle moves towards the touch position, creating a simple interactive experience.