Sure! Here's a simple implementation of an Old Western shooter game using JavaScript, HTML, and pictograms. Please copy the code below and save it as a single HTML file. You can then open it in a web browser, preferably on a smartphone, to play the game.
This implementation provides a basic Old Western shooter game experience. You can control the player using the left and right arrow keys, and shoot bullets using the spacebar. The objective is to shoot down all the enemies while avoiding collisions. If an enemy reaches the bottom of the screen or if the player collides with an enemy, the game ends, and a "Game Over" message is displayed.
Please note that this is a very basic implementation and can be further enhanced with additional features and graphics based on your preferences.