Sure! Here's an example of a simple game implemented as a single HTML file using JavaScript. The game is designed for smartphone operation and uses pictograms to enhance the experience:
This simple game allows the player (represented by a blue square) to navigate within the canvas using touch controls on their smartphone. The goal (represented by a green square) will spawn in a random position, and the player's objective is to collide with the goal. Whenever the collision occurs, a new goal will spawn at another random position.