Sure! Here's a simple game that you can play on a smartphone. It uses pictograms and incorporates JavaScript to handle the game interactions.
Block
To play the game:
1. Save the HTML code above into a file with a ".html" extension, for example, "gravity_game.html".
2. Open the file in a web browser on your smartphone.
3. Tap on the yellow block to disable gravity.
4. Once gravity is disabled, you can drag the block around the screen using your finger.
5. Have fun moving the block around!
Note: For simplicity, this game has a basic user interface and minimal graphics. Feel free to modify and enhance it further according to your preferences.