Sure! Here's a sample game implementation using JavaScript and HTML for a simplified version of the popular game "Geometry Dash" designed for smartphone operation:
This is a simplified version of the game where you control a red circle (player) by tapping the screen. The objective is to avoid collision with the top and bottom boundaries of the game window. If a collision occurs, the game is over and an alert is shown. The game restarts automatically after the player loses.
Please note that this is a minimal implementation and doesn't include the full complexity and features of the original Geometry Dash game. It's intended just as a simple example to demonstrate the basic mechanics.