Sure! Here's a game implemented as a single HTML file with JavaScript enclosed in script tags. It is designed for smartphone operation and uses pictograms.
To play the game, simply open the HTML file in a web browser on your smartphone and follow the instructions. Click on the brown cube to gain a point, destroy the red cubes by clicking on them, and try to reach a score of 100 without letting the brown cube's health reach zero.
The brown cube represents your health, while the red cubes are your enemies. The red cubes will teleport randomly around the brown cube, and you can attack them by clicking on them. Good luck with the game!