Sure, here's a simple horror game using JavaScript and enclosed in script tags within a single HTML file. Please note that this is a basic implementation and can be expanded upon and customized further.
Congratulations! You escaped!
Game over! The monster got you!
To play the game:
1. Copy the above code into a new HTML file.
2. Save the file with a .html extension.
3. Open the HTML file in any web browser on your smartphone.
4. Use the arrow keys or swipe gestures on your smartphone to move the player character (
🚶) around the pizza place.
5. Collect all three keys (
🔑) by touching them.
6. Avoid getting caught by the chasing monster (
👹).
7. If you collect all the keys, a "Congratulations! You escaped!" message will be displayed.
8. If the monster catches you, a "Game over! The monster got you!" message will be displayed.
Note: For a better gameplay experience, you can enhance the visuals, add sound effects, additional levels, or more challenging gameplay mechanics to this basic implementation.