Sure! Here's a simple example of a pixel RPG game with fighting mechanics and zombies:
This implementation creates a simple pixel RPG game where you control a blue player and try to avoid colliding with a red zombie. You can play the game on a smartphone by opening the HTML file in a web browser.
The game screen is represented by a `div` element with the id `game-screen`. The player and zombie characters are created as separate `div` elements with the class `player` and `zombie` respectively. The player can be moved using the arrow keys, and their position is updated accordingly.
The `checkCollision` function is used to detect if the player and zombie collide. If they do, an alert is displayed indicating that the game is over.
Note that this is a very basic implementation and can be expanded upon to include more features, such as combat mechanics, levels, and more.