Sure! Here's a simple implementation of a Mario game in a single HTML file using JavaScript and including control buttons for smartphone operation:
In this simple Mario game implementation, you can control Mario's movement using the left and right buttons. Mario will move left or right by 10 pixels each time you press the corresponding button. You can also make Mario jump by clicking or touching the jump button. Mario will jump up to a height of 100 pixels and then come back down after a delay of 500 milliseconds.