I'm glad you're interested in creating a game! Here's an example of a simple peek-a-boo game implemented in a single HTML file with JavaScript:
Peek-a-Boo Game
Click on the picture to play!
This code will create a simple peek-a-boo game where the play button will reveal a smile icon for 2 seconds and then a sad icon for 2 seconds before hiding them both and showing the play button again. You can further customize the game design and mechanics as needed. Enjoy coding and have fun playing the game!