Sure! Here's a basic implementation of a multiplayer battle royale game where the objective is to collect all the cube pieces to win. The game is designed for smartphone operation and utilizes pictograms.
To play the game, simply copy the above code into a single HTML file and open it in a web browser. The game will prompt you to enter your player ID (player1 or player2). Use touch or mouse inputs to move your player and collect all the cube pieces to win the game.