Sure! Here's a sample implementation of the game you described using HTML and JavaScript:
You can save the above code in a `.html` file and open it in any web browser to play the game. Use the arrow keys to control the player's movements. The game screen is displayed in a 400x400px container with a black background. The player character is represented by a scared emoji (
😨) and must navigate across the red platforms without falling into the red lava. If the player touches the lava, the game ends and an alert is shown.