Sure! Here's a simple game, similar to Mario, implemented in a single HTML file with JavaScript. The game is controlled by tapping on the screen, suitable for smartphone operation. I will use pictograms for the character. Please note that this is a basic implementation and might not include all the features of a complete game.
In this implementation, there is a canvas element where the game is rendered. The character is represented by a pictogram image (replace "emozi_all/game.png" with the path to your preferred image). By tapping on the canvas, the character jumps. The game loop redraws the canvas continuously to maintain animation.
Please make sure to replace `"emozi_all/man.png"` with the path to your own man pictogram image in order to see the character in the game.