Sure! Here's an example of a simple merge game implemented as a single HTML file using JavaScript and pictograms for smartphone operation:
Merge Game
This implementation creates a simple merging numbers game where you have 4 cells and you need to swipe left or right to merge cells with the same value. Swiping down or up will also trigger a merge. The game ends when all cells are filled and there are no more possible merges.
You can save this code into a single HTML file and open it in a web browser on a smartphone to play the game.