As a language model AI, I can provide you with an example of how a simple smartphone game implemented as a single HTML file can look like. Here's a basic template you can start with:
You can now fill in the game logic within the `
` tags. Use JavaScript to handle user input, update the game state, and render your game graphics. You can use pictograms or any artwork you want to enhance the visuals of your game.
Remember to replace the comment placeholder `// Your game logic goes here` with your actual game code.
Note: This example is just a starting point for a simple smartphone game and does not implement any specific functionality. You will need to define and code your game logic to make it fully functional as a playable game.