Sure! Here's an example of a simple game that meets your requirements. It uses JavaScript to display moving emojis and adds a new emoji every second. Each new emoji appears 2% faster than the previous one.
Note: To see the game in action, you can copy the entire code block below and save it as an HTML file. Open the saved file in any web browser (preferably on a smartphone) to play the game.
When you open the HTML file in a web browser, you'll see emojis appearing and moving across the screen. Each new emoji will appear 2% faster than the previous one. The emojis will continue to appear until you close the page.
Feel free to customize the game by adding more emoji characters to the `emojis` array or adjusting the styling properties to fit your preferences.