Sure! Here's an example of a simple game where you tap on boxes to spawn different types of cats to fight dogs. The game is implemented as a single HTML file with JavaScript enclosed in script tags.
In this game, three different types of cats are represented by pictograms:
🐱 for normal cats,
😾 for angry cats, and
😺 for cute cats. When you tap on any of the boxes, a cat of the selected type will be spawned and displayed on the screen. Simultaneously, the dog's health will be reduced by 1. If the dog's health reaches 0 or below, a game over message will be shown.
Please note that this is a basic example, and you can expand and enhance the game by adding more features like scoring, additional cat types, animations, and levels.