Sure, here's an example of a simple game where you can shoot clowns with a shotgun using JavaScript and HTML:
Please note that you need to replace `"emozi_all/clown.png"` with the actual URL of the pictogram image you want to use for the clowns.
To play the game, open the HTML file in a web browser on your smartphone. Tilt your device to move the shotgun (gray rectangle) horizontally and tap on clowns to shoot them. Your score will increase each time you shoot a clown.