Sure, here's a simple implementation of a 2.5D game using JavaScript and pictograms:
To play the game, simply save the above code as an HTML file (e.g., `game.html`) and open it in a web browser or a web browser simulator on a smartphone. You can use the arrow keys to move the character (`🐄`) around the game map, which is generated based on the provided `gameMap` array. The blocks are represented by different pictograms, as defined in the `blocks` array. The player starts at position `(1, 2)` and can navigate the map as long as there are blocks available in that direction.
Note that this is a very basic implementation of a 2.5D game and can be extended and enhanced further based on your specific requirements and imagination.