Sure! Here's a simple game called "Evil Mum". It can be played on a smartphone and uses pictograms. It is implemented as a single HTML file enclosed in script tags:
In this game, you control a red player using touch input on a smartphone. The objective is to catch the blue "mum" pictogram by moving the player around the screen. Each time the player catches the mum, their score increases. The mum's size also increases with each catch, making it harder to catch her. The game will keep running until you close or reload the webpage.