Sure! Here's a simple game implemented as a single HTML file using JavaScript, enclosed in script tags:
🧟♂️
In this game, you start in the center of the screen represented by the zombie pictogram "
🧟
♂️". You need to survive for at least one minute (60,000 milliseconds) without the monster getting you. After one minute, an alert will pop up indicating that the game is over.
You can run this code on a smartphone browser by saving it as an HTML file and opening it. The game container will be shown with the zombie pictogram, and you need to avoid being "killed" by the monster for a minute.