Sure! Here's an example of a simple game implemented as a single HTML file with JavaScript:
This game allows the player to control a spaceship using the left and right arrow keys on a smartphone. The spaceship can shoot projectiles by tapping on the screen. The goal of the game is to collect resources (pixels) by shooting at them. Each resource is represented by a randomly colored projectile that the player needs to collide with the spaceship to collect. When a collision occurs, it will be logged to the console as a confirmation of collecting the resource.
Note: This is just a basic implementation to demonstrate the game mechanics. You can customize and improve it based on your specific requirements and visual design preferences.