Sure, here's a simple game where you control a character to eat everything on the screen using pictograms. Please note that this is a very basic example and can be further expanded upon:
To play the game, you can copy the above code and save it as a `.html` file. Open the file in a web browser, and you'll be able to control the blue character using the arrow keys. The goal is to move the character and eat all the green foods on the screen by colliding with them.