<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Creeper</title>
</head>
<body>
<canvas width="600" height="400"></canvas>
<script>
const pantalla = document.querySelector('canvas');
const pincel = pantalla.getContext('2d');
pincel.fillStyle = 'darkgreen';
pincel.fillRect(0, 0, 350, 300);
pincel.fillStyle = 'black';
pincel.fillRect(50, 60, 90, 90); //ojos
pincel.fillRect(210, 60, 90, 90);
pincel.fillRect(140, 150, 70, 100); //nariz
pincel.fillRect(100, 190, 40, 110); //boca
pincel.fillRect(210, 190, 40, 110);
</script>
</body>
</html>