Sure! Below is a simple game implementation in a single HTML file that utilizes JavaScript and follows the given requirements:
In this game, you control a green square representing the player using the arrow keys on your smartphone. Your objective is to avoid the red square (zombie) and survive until the day meter reaches 100. The day meter is represented by a gray bar at the top left of the screen, filling up gradually as time passes. If the zombie catches you, the game is over, and if you survive until the day meter is full, you win the game.
Please note that this is a very basic implementation and can be expanded upon to add more features, levels, graphics, and interactions.