Sure! Here's a Tetris-like game called "Tetris and Lava" implemented as a single HTML file using JavaScript:
To play the game, simply open the HTML file in a web browser, and you can start controlling the tetrominos using the arrow keys on your smartphone. The goal is to complete lines and score points while avoiding collisions with the lava blocks. The game will end when a tetromino reaches the top of the grid, and your final score will be displayed. Enjoy playing "Tetris and Lava"!