Sure, here's an example of a simple FPS pixel game about interacting with objects:
This code creates a canvas and handles mouse events for interacting with objects. The objects are represented as rectangles with different colors. The player is also represented as a rectangle. When the player clicks and holds on an object, the object follows the player's movement. The game continuously updates the canvas to redraw the objects and the player position, creating the effect of an interactive FPS pixel game.