Sure, here's a sample game that meets your requirements. Please note that this is a very simplified and basic example for demonstration purposes only.
Lost Child Game - Banban's Kindergarten
In this simple game, you control the red square which represents the player using the arrow keys on your smartphone. The blue squares represent the mascots. The objective is to avoid colliding with the mascots as you move around the kindergarten. If the player collides with any mascot, the game ends and a "Game Over" message is displayed.
This example focuses on the basic mechanics of player movement, mascot movement, collision detection, and game over handling. You can customize and expand the game based on your needs and design preferences.