Sure! Here's a simplified text-based sample game inspired by "The Battle Cats":
In this game, you start with an initial energy level of 50 and a cat power of 1. You have to attack enemies by spending energy points (5 per attack) until you defeat all the enemies. The game checks the game state after each attack and displays the remaining enemies and energy points. If you defeat all enemies before running out of energy, you win.
Please note that this is a very basic example and does not include any graphical elements or smartphone-specific operations. It's simply a minimal text-based game implementation using JavaScript.