Sure, here's a simple game without guns that you can play on a smartphone. Since you mentioned the use of pictograms, I'll include some basic graphics to represent the game elements. Just copy and paste the code into a single HTML file and open it in a web browser to play the game:
In this game, you control a player pictogram represented by a blue square. Use the left and right arrow keys on your smartphone to move the player horizontally within the canvas. The game is enclosed in the script tags and contains JavaScript for player movement, event handling, and drawing the player on the canvas. The processing is started by the `draw()` function, which is called recursively using `requestAnimationFrame()` to update the game state and render the player continuously.