As a programmer, here's an example of a simple game implementation using only JavaScript and HTML, encapsulated in `` tags:
<br><br>
<br>
<style>
#gameCanvas {
border: 1px solid black;
width: 300px;
height: 300px;
}
</style>
<canvas id="gameCanvas"></canvas>
In this game example, you can control a circle representing Sonic's position using the arrow keys on your smartphone. The game canvas is displayed as a 300x300px area with a border. The pictogram for Sonic is a blue circle. When you press an arrow key, Sonic will move accordingly. The `initializeGame` function sets up the canvas and initial Sonic position. The `moveSonic` function handles the keyboard input to move Sonic and redraws the canvas.