Sure! Here's a simple but fun maze game implemented as a single HTML file using JavaScript:
This HTML file implements a maze game with 99 levels. The maze is displayed as a grid, and the player represented by a yellow square "P" needs to reach the green square "G" to clear each level. The player can use arrow keys on their smartphone to navigate through the maze. Once a level is cleared, a notification message appears, and the next level is loaded. If the player completes all 99 levels, a congratulatory message is displayed, and the game restarts from the first level.
Please note that this is a simple example implementation, and you can modify or enhance it further based on your requirements and design preferences.