Sure! Here's a simple game implemented as a single HTML file using JavaScript. It will work on smartphones too. The game consists of a black block that glides to the right automatically, a red block that glides to the left automatically, a blue block that moves up when you tap/click on the screen, and a yellow block that moves down when you tap/click on the screen. Pictograms, representing the blocks, are included in the game.
To play the game, simply open the HTML file in a web browser and tap/click on the screen to move the blue block upwards. The black block will glide to the right automatically, the red block will glide to the left automatically, and the yellow block will move down automatically.