Sure, here's a simple game implemented as a single HTML file with JavaScript enclosed in script tags. The game is designed for smartphone operation and uses pictograms. Please note that this is a basic example and can be further enhanced.
Picture Matching Game
Score: 0
To play the game, open the HTML file using a web browser on your smartphone. You'll see a grid of pictogram tiles. Tap on any tile to flip it over and see the pictogram. Try to find matching pairs of pictograms by flipping two tiles at a time. If the tiles match, they will remain flipped. If they don't match, they will flip back over. Keep flipping tiles and finding matches until all tiles are matched. Your score will be displayed at the top. Have fun playing!