Sure! Here's an example of a simple game where you can shoot small amounts of alien spacecraft while controlling a fighter jet. The game will be implemented as a single HTML file containing JavaScript code enclosed in script tags:
This HTML file sets up the game canvas, controls the fighter jet's movement using `keydown` and `keyup` events, allows the player to shoot bullets by pressing the spacebar, and handles collision detection between bullets and aliens. The game runs in a loop using `requestAnimationFrame` to continuously update and redraw the game elements.
The fighter jet is controlled using the left and right arrow keys, and bullets are fired upwards to hit the randomly spawned aliens. The game loop continually updates the positions of the bullets and aliens, checks for collisions, and redraws the canvas accordingly.
Please note that this is a basic implementation to demonstrate the concept. You can modify and enhance the game with additional features like levels, scoring, different alien types, power-ups, and more.