Sure! I have created a simple shooting game for you using HTML, CSS, and JavaScript. The game works best on smartphones and uses pictograms for visual elements. Here's the code for the single HTML file:
Score: 0
To play the game, you can copy the above code into a new HTML file and run it in a browser (preferably on a smartphone). The player can use the arrow keys to move left or right, and the spacebar to shoot the enemy. The objective of the game is to shoot the enemy while avoiding collision. The score is displayed at the top right corner of the screen, and the game ends when the enemy reaches the player or when the player collides with the enemy.
I hope you enjoy playing the shooting game! If you have any further questions, feel free to ask.