Sure! Here's an example of a game where 100 squares throw boomerangs at each other when touched. The game can be played on all devices, including smartphones. I will provide the code in a single HTML file, enclosed in script tags, and written in JavaScript.
In this game, squares are represented as blue boxes on the screen. When you touch/click on any of the squares, they will throw a boomerang by changing their background color to red for a second and then reverting back to blue.
You can test this game on your smartphone or any device by opening it in a web browser. When you touch any of the squares, you will see the boomerang effect.