Sure! Here's a simple Frogger clone game implemented as a single HTML file with JavaScript. The game can be played on a smartphone. However, please note that due to the limitations of plain text, I won't be able to include any pictograms in this response.
To play the game:
1. Copy the entire code snippet into a new HTML file (e.g., "frogger-clone.html").
2. Open the HTML file in a web browser on your smartphone.
3. The game board will be displayed, and a green player icon will be positioned at the bottom.
4. Use the left and right arrow keys to move the player left or right.
5. The objective is to avoid colliding with the red cars moving from top to bottom.
6. The game will continue until a collision occurs, at which point an alert will appear saying "Game Over!".
Please note that this is a basic implementation, and you can enhance it by adding more features, levels, or improving the graphics and gameplay.