Sure! Here's a simple game that you can play on your smartphone using pixel art:
To play the game, simply copy the above code into a new HTML file and open it on your smartphone. The game will display a canvas where you can control a pixel art person using the arrow keys on your smartphone's keyboard. The person will move one tile at a time in the corresponding direction when you press the arrow keys. The game loop will update the canvas every 100 milliseconds to provide smooth animation. Have fun playing!