Sure! Here's an implementation of the game according to your requirements:
To open the game on your smartphone:
1. Copy the entire code snippet provided into a text editor.
2. Save the file with a `.html` extension, for example, `game.html`.
3. Transfer the file to your smartphone.
4. Open the file with any HTML file viewer or using a web browser on your smartphone.
Once opened, you will see a black square on the screen. If you tap it for the first time, a message saying "Hey, don't touch it!" will be displayed. If you tap it again, the game will instantly close, and you will need to wait for 5 seconds before rejoining.