Sure! Here's an example of a merge game implemented as a single HTML file using JavaScript and enclosed in script tags. I've used pictograms to represent the game elements, and you can play it on a smartphone.
Merge Game
To play the game, simply copy the code above and save it as a `.html` file. You can then open the HTML file in any web browser, and the game will be playable on a smartphone. Use the arrow keys to merge the pictograms and reach the maximum number of 2048 without running out of moves.