Put it on your site
<div id="game" style="aspect-ratio:1440/380"></div>
<script crossorigin src="https://cdnjs.cloudflare.com/ajax/libs/react/18.3.1/umd/react.production.min.js"></script>
<script crossorigin src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/18.3.1/umd/react-dom.production.min.js"></script>
<script>window.PIXEL_RUN_FACE = "my-face.gif";</script> <!-- optional -->
<script src="pixel-run-game.js"></script>
<script>
ReactDOM.createRoot(document.getElementById("game"))
.render(React.createElement(PixelRunGame, { background: "#33333A" }));
</script>
Everything else, every option, and how to use your own face: the repository.