<canvas width = 600 height = 400></canvas>
<script>
var creeper = document.querySelector('canvas')
var context = creeper.getContext('2d')
context.fillStyle = 'darkgreen'
context.fillRect(150,0,350,300)
context.fillStyle = 'black'
context.fillRect(200,50,90,90)
context.fillRect(360,50,90,90)
context.fillRect(290,140,70,100)
context.fillRect(250,190,40,110)
context.fillRect(360,190,40,110)
</script>