Sure! Here's an example of a game implemented as a single HTML file using Three.js, JavaScript, and pictograms for smartphone operation. The game allows you to control a 3D character by rotating it using buttons to change its X, Y, N, and Z coordinates.
To play the game, open the HTML file with a web browser on your smartphone. You will see four buttons labeled "Rotate X+," "Rotate Y+," "Rotate N+," and "Rotate Z+." Each button corresponds to the respective coordinate rotation. Pressing a button will rotate the 3D character accordingly.
Note: For the game to display properly, make sure you have an internet connection to load the Three.js library from a CDN.