Sure! Here's an example of a game implemented as a single HTML file with JavaScript, using pictograms for smartphone operation:
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The above code sets up a game where an emoji is randomly chosen every 0.3 seconds and displayed in the center of the page. After every 10 seconds, a weirdness event occurs, which triggers one of four random commands to apply to the emoji or the background.
The "PARTY" command changes the background color to a random color every 0.5 seconds. "more emojis" adds a random emoji next to the existing one. "why is it raining" sets the background to a rain image. "different texture" sets the background to a rainbow image.
After another 10 seconds, the weirdness event stops.