Sure! Here's an example of a merge game implemented as a single HTML file using JavaScript. Please note that you would need to add pictograms and customize the game design according to your preferences.
In this game, when you run the HTML file, it will start the game processing, and the game logic will execute. The `startGame()` function is responsible for initializing the game and calling the `buyBlueCoin()` function. When you have enough coins to buy a blue coin, it will subtract 10 coins and add a blue coin to the `coins` array. After buying a blue coin, the `mergeCoins()` function will be called to check if you have at least two blue coins to merge.