Sure! Here's an example of a simple merge game implemented as a single HTML file, using JavaScript and pictograms for a smartphone operation.
Merge Game
In this game, you can swipe in four directions (up, down, left, and right) by using touch input on your smartphone. The goal is to merge tiles with the same number by swiping them towards each other. The merged tiles will form a new tile with a higher number represented by pictograms.